quiz about sharks

What is the animal at the picture ?

• tiger shark

• sand shark

• great white shark

• blue shark

Answer explanation

The tiger shark is one of the requiem sharks, renowned as formidable predators with powerful jaws and razor-sharp teeth. It is the second largest predatory shark after the great white shark, measuring over 5m (16ft) in length and weighing 900kg (2,000 lbs).

It is found around the world in marine environments with warm waters, particularly around central Pacific islands, mostly between 45ºN and 32ºS. Occasional sightings in cooler temperate zones may be due to seasonal warm currents such as the Gulf Stream.

Tiger sharks are mostly nocturnal apex predators, that will diet on a wide variety of food including fish, seals, birds, and more. It has the reputation as a ‘garbage eater’, sometimes consuming inedible man-made objects that get stuck in their stomachs.

How many senses do Sharks have ?

• 7

• 5

• 10

• 20

What species of shark is this ?

• Thresher Shark

• Cow Shark

Sharks have many rows of teeth. Which row has the biggest teeth and do most of the work.

鲨鱼有很多排牙齿，哪一排的牙齿最大做最多的工作？

• The back row.

• The middle row

• the front row

The Shark's skin has razor-sharp teeth...what are they called ?

• scales

• denticles

• tentacles

• steel

What is a baby shark called ?

• calf

• cub

• kit

• pup

what animal( shark) is that?

• great white

• zebra

• cow

• mega mouth

Answer explanation

COMMON NAME:

Great White Shark

SCIENTIFIC NAME:

Carcharodon carcharias

TYPE:

Fish

DIET:

Carnivore

GROUP NAME:

School, shoal

SIZE:

15 feet to more than 20 feet

WEIGHT:

2.5 tons or more

SIZE RELATIVE TO A BUS:

IUCN RED LIST STATUS:?

Vulnerable

LC

NT

VU

EN

CR

EW

EX

LEAST CONCERNEXTINCT

CURRENT POPULATION TREND:

Unknown

About great white sharks

While the shark in Jaws was inspired by a great white shark in New Jersey, the legendary fish is far less fearsome in reality. As scientific research on these elusive predators increases, their image as mindless killing machines is beginning to fade.

Found in cool, coastal waters around the world, great whites are the largest predatory fish on Earth. They grow to an average of 15 feet in length, though specimens exceeding 20 feet and weighing up to 5,000 pounds have been recorded.

They have slate-gray upper bodies to blend in with the rocky coastal sea floor, but they get their name from their white underbellies. They're streamlined, torpedo-shaped swimmers with powerful tails that can propel them through the water at speeds of up to 15 miles per hour. They can even leave the water completely, breaching like whales when attacking prey from underneath.

Hunting and diet

Highly adapted predators, their mouths are lined with up to 300 serrated, triangular teeth arranged in several rows, and they have an exceptional sense of smell to detect prey. They even have organs that can sense the tiny electromagnetic fields generated by animals. Their prey includes other sharks, crustaceans, molluscs, and sea birds. Larger whtie sharks will also prey on sea lions, seals, and small toothed whales like orcas. The species has even been seen feeding on dead whales.

Shark attacks

Of the 100-plus annual shark attacks worldwide, a third to a half are attributed to great white sharks. Most of these, however, are not fatal. Research finds that great whites, which are naturally curious, often "sample bite" then release their human target. It's not a terribly comforting distinction, but it does indicate that humans are not actually on the great white's menu. Fatal attacks, experts say, are typically cases of mistaken identity: Swimmers and surfers can look a lot like their favorite prey—seals—when seen from below.

Population and conservation

There is no reliable population data for the great white shark, but scientists agree that their number are decreasing precipitously. Overfishing and getting accidentally caught in fishing nets are their two biggest threats. The species is classified as vulnerable—one step away from endangered—by the International Union for the Conservation of Nature.

What is this part of a shark ?

• The mouth

• The tail

• The eyes

• The fin

Sharks have no bones , their body is made up of ...?

What is the largest Shark alive today ?

• Tiger Shark

• Whale Shark

• Hammerhead