Ants have tiny magnetic compasses in their antennae which help them navigate.
9
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
A scorpion can hold its breath for up to 6 days.
19
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
Cats recognise the voice of their owner, but never evolved to care.
22
Drivers kill more deer than hunters do.
660
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40