Caribou: Characteristics and Threats

Caribou, also known as reindeer in some regions, are mammals native to northern Canada. They are warm-blooded, covered in fur, and feed their young with milk. Caribou are unique among deer as both males and females grow antlers. They are known for their epic migrations, traveling over 600 miles to reach summer habitats. Caribou face threats from predators and climate change, leading to a vulnerable conservation status. Their diet mainly consists of lichen, which they dig up from under the snow. Caribou are adapted to harsh Arctic conditions but are susceptible to diseases as the climate warms.

What is a unique feature of caribou compared to other mammals?

• They are cold-blooded.

• They have scales instead of fur.

• They are ungulates with hooves.

• They lay eggs.

In which regions are caribou referred to as reindeer?

• South America

• Africa

• Russia and Scandinavia

• Australia and New Zealand

What is the primary food source for caribou during winter?

• Insects

• Lichen

• Berries

• Grass

How do female caribou's antlers differ from those of males?

• Females have longer antlers.

• Females do not grow antlers.

• Females have shorter antlers.

• Females' antlers are the same size as males'.

When do male caribou typically shed their antlers?

• In June

• After mating season in November or December

• In March

• During summer

Why do caribou migrate north during the summer?

• To find cooler temperatures

• Because the snow has melted and plants are abundant

• To escape predators

• To find new water sources

How fast can caribou run to evade predators?

• 60 miles per hour

• 50 miles per hour

• 35 miles per hour

• 20 miles per hour

What is a major threat to caribou populations?

• Lack of food

• Climate change and habitat alteration

• Overpopulation

• Excessive hunting by humans

What classification is given to caribou due to their declining numbers?

• Endangered

• Critically endangered

• Least concern

• Vulnerable to extinction

What makes caribou more susceptible to diseases as the Arctic warms?

• Increased predator presence

• Closer living conditions within herds

• Lack of food

• Decreased migration distances