Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Lobsters have blue blood.
476
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13