The Science of Hibernation: How Animals Prepare

The video explains how animals prepare for hibernation by creating insulated dens or finding warm spaces. It discusses various signals that trigger hibernation, such as temperature changes, food supply, daylight hours, and internal biological clocks. The video also highlights the differences between hibernation and sleep, noting that hibernation involves a significant reduction in body functions and is harder to wake from. Finally, it reviews key points with questions to reinforce learning.

Which animal does not build a den for hibernation but instead seeks warm spaces?

• Polar bears

• Bats

• Lemurs

• Ground squirrels

What is one of the signals that can trigger hibernation in animals?

• A full moon

• A drop in air temperature

• Increased rainfall

• Lunar eclipse

What is the term for the internal biological calendar that signals hibernation?

• Circannual rhythms

• Biorhythms

• Slumber cues

• Sleep cycle

How does hibernation differ from sleep in terms of blood flow?

• Blood flow stops completely

• Blood flow slows down significantly

• Blood flow remains constant

• Blood flow increases during hibernation

Why might some animals need more sleep after emerging from hibernation?

• They need to catch up on missed dreams

• They are still tired from hibernation

• They need to adjust to the new season

• They are preparing for the next hibernation

What happens to an animal's body functions during hibernation?

• They become more active

• They come to a stop

• They remain unchanged

• They double in activity

What is a common characteristic of hibernating animals when they wake up?

• They are very hungry

• They are ready to migrate

• They are difficult to rouse

• They are immediately alert