A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
A group of kittens is called a "kindle".
10
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Whales and dolphins can't taste anything other than salt.
11