The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Whales and dolphins can't taste anything other than salt.
11