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 sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20