6 Ants never sleep. Instead, they “rest” for eight minutes to “rest” twice a day. The ant queen’s rest takes 90 minutes a day.
7. The Basenji is the only dog that cannot bark.
8. Only half of the dolphin’s brain sleeps. The second half is awake at that time, and monitors the environment.
9. The flea can move only by jumping, the muscles of its legs are arranged like catapults. They accumulate energy and “shoot” the flea in the jump.
10. The eye of a giant squid the size of a basketball.