Cows can sleep standing up, but they can only dream lying down.
745
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
In Australia, there are spiders big enough to eat snakes.
20
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Cats sleep for 70% of their lives.
8