
Rattlesnake
A desert alarm clock with a noisy tail.
Rattlesnake vs Polar Bear
Tonight's science rumble is set in a rumble pit drawn in chalk by very excited zookeepers. No snacks were harmed.
Rattlesnake
Crotalus atrox
A new rattle segment is added each time they shed.
Mice, rats, rabbits — small warm snacks of the desert.
Polar Bear
Ursus maritimus
Polar bears can swim for days. They are marine mammals in a fur coat.
Mostly seals. They are the most carnivorous of all the bears.
Who do YOU think wins?

Polar Bear
The Arctic's heavyweight champ.