9. How are animals and humans similar when it comes to sleep?

both humans and animals display the same level of brain activity

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )