A scorpion can hold its breath for up to 6 days.
19
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
When cats are happy, they may squeeze their eyes shut.
10
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9