A scorpion can hold its breath for up to 6 days.
19
The seahorse is the only fish to have a neck.
12
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
A 42-foot sperm whale has about 7 tons of oil in it.
209