When cats are happy, they may squeeze their eyes shut.
10
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A dork is a whale's penis.
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