Insulation – Did you know?

The video discusses how marine mammals such as walruses, sea lions, and dolphins survive in cold environments. It highlights the role of blubber, a thick layer of fat, which acts as an effective insulator, sometimes reaching up to 12 centimeters in thickness, helping these animals maintain their body heat in the world's coldest regions.

Which of the following animals is mentioned as a marine mammal in the video?

• Penguins

• Walruses

• Polar Bears

• Seals

What is the term used for the thick layer of fat found in marine mammals?

• Blubber

• Fur

• Skin

• Scales

How thick can blubber be in some marine mammals?

• 8 centimeters

• 12 centimeters

• 15 centimeters

• 5 centimeters

What is the primary function of blubber in marine mammals?

• To store food

• To help them swim faster

• To act as an insulator

• To protect against predators

In which environments is blubber particularly effective?

• Deserts

• Mountains

• Rainforests

• Cold environments