
Rattlesnake
A desert alarm clock with a noisy tail.
Rattlesnake vs Jaguar
Tonight's science rumble is set in the visitor lawn, now closed for SCIENCE. 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.
Jaguar
Panthera onca
Jaguars often kill with one bite to the skull. Efficient. Intense. Not a hug.
Capybara, deer, fish, caimans — the menu is the whole forest.
Who do YOU think wins?

Jaguar
The skull-cracker of the rainforest.