Orangutans and Gorillas Quiz

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

Based on the text, which factor most contributes to the critically endangered status of orangutans?

• Their long lifespan.

• Their slow reproduction rate.

• Their preference for durian.

• Their ability to use tools.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

If the number of Tapanuli orangutans decreases by 50%, approximately how many will remain?

• 400

• 700

• 1,500

• 8,000

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

What can be inferred about the survival skills of orangutan infants?

• They learn independently from birth.

• They rely entirely on their fathers.

• They require years of guidance from their mothers.

• They can survive alone after one year.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

Suppose researchers find a primate with arms the same length as its legs. Based on the text, how would this differ from an orangutan?

• The new primate would likely have a stronger grip.

• The orangutan’s arms are proportionally longer.

• The orangutan would be weaker in climbing.

• The new primate would have a larger nest.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

Which behavior in orangutans could be used as an indirect method to estimate their population?

• Tool use.

• Nest building.

• Eating durian.

• Facial flanges in males.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

If climate change caused the decline of fruit trees in Borneo, which orangutan behavior would be most affected?

• Sleeping in nests.

• Using their feet to eat.

• Feeding on their favorite food.

• Growing flanges in males.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

Which statement best explains why female orangutans might choose males with flanges?

• Flanges are a sign of maturity and health.

• Flanges help males climb better.

• Flanges make males eat more durian.

• Flanges protect males from predators.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

If an orangutan is seen using a stick to get insects, what does this reveal about its intelligence?

• It can only find food on the ground.

• It understands how to use objects to solve problems.

• It cannot survive without human help.

• It is stronger than other primates.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

Which combination of traits makes orangutans highly adapted to living in trees?

• Long arms, gripping feet, and climbing skills.

• Flanges, tool use, and slow reproduction.

• Beard, moustache, and ginger fur.

• Nest building, durian eating, and soil eating.

ORANGUTAN

1. THERE ARE THREE SPECIES OF ORANGUTAN Orangutans are great apes found only in the wild on Borneo and Sumatra islands. There are three species of orangutans, namely Bornean, Sumatran, and Tapanuli orangutans. Unfortunately, all three are critically endangered. There are just over 100,000 Bornean, less than 14,000 Sumatran orangutans, and less than 800 Tapanuli orangutans remaining. The Bornean and Sumatran orangutans have fluffy ginger fur. Bornean orangutans have darker red coats and rounder faces. Adult males have a beard and moustache, and adult female Sumatran orangutans also have beards.

2. THEY'VE GOT LONG ARMS Orangutans have an arm span of about 2.2 m from fingertip to fingertip. Considering their standing height is around 1.5 m, this is an impressive reach. Their arms are so long, in fact, that they're one and a half times longer than their legs and stretch to their ankles when standing.

3. THEY DON'T MIND EATING WITH THEIR FEET Orangutans are skilled climbers who use both hands and feet to gather food and travel through trees. Their feet and hands are almost identical, with four fingers and a thumb.

4. THEY LEARN EVERYTHING THEY NEED TO KNOW FROM MUM Orangutan infants stay with their mother for about 7 years, learning everything they need to survive. During this time, they learn what food is good for them. The infants stay close to their mothers, riding on their bodies and sleeping in their nest. Orangutans only give birth once every 7-9 years, which is the longest birth interval of any land mammal.

5. MALES ARE MAJESTIC Orangutans are great apes with long lifespans. They can live up to 50 years in the wild and fully mature at around 35 years old. Some adult male orangutans develop flaps of fatty tissue on both sides of their face, known as flanges, which females may consider when choosing a mate.

6. THEY BUILD NESTS TO SLEEP IN Orangutans build a new nest every night for sleeping using large and small branches. These nests are used to estimate their population in an area, as they are easier to spot.

7. SOME ORANGUTANS USE TOOLS Orangutans are known to use tools like sticks to extract termites. ants, or bees from tree holes. They have also been observed creating leaf "gloves" to protect their hands from prickly fruits and thorny branches.

8. THEY HAVE SMELLY TASTE IN FOOD Orangutans primarily eat fruits, but they also consume young leaves, flowers, insects, soil, and tree bark. Durian is their favorite fruit, despite its stinky smell.

If conservationists want to prioritize the most threatened orangutan species, which should they protect first according to the text?

• Bornean orangutan.

• Sumatran orangutan.

• Tapanuli orangutan.

• All species equally.