Creatures of the Night

1. 1. Many desert animals are nocturnal because ___

• a. they cannot sleep at night

• b. there are many predators out at night

• c. they try to avoid the extreme heat of the day.

• d. None of the above

An animal that has extra rods in the backs of its eyes will

• a. have poor night vision.

• b. have better night vision.

• c. use ecolocation.

• d. not be able to see at all.

3. How are nocturnal and diurnal animals different?

In your own words, explain how echolocation works. Why does it allow bats to be nocturnal creatures?

How have owls adapted their behavior?

• Are nocturnal so that they don't get eaten by birds that hunt during the day.

• Changed their sleeping habits to hunt when mice are out

• Changed what they eat so that they can hunt animals during the day.

• Owls eat plants so they can eat anytime they want