Like a turkey or a duck?
Armadillos and turtles have thick shells.
A hyena has a lovely thick kneck, as does a rhino.
Beavers and polar bears have thick fur.
Penguins
You mean Pachyderm, it is a thick skinned animal such as an elephant or hippopotamus
The thick layer of fat under a marine animal's skin is called blubber, and it keeps the animal warm, much like insulation in a house.
NO how thick are you a snail is a animal DUR
A polar bear is a heavy, thick-furred animal designed to survive in cold environments. Its thick fur helps insulate its body and retain heat to withstand freezing temperatures.
Reptiles
an animal whose skin is one inch thick
To stay warm in the cold winter.
polar bears and whales