
Rattlesnake
A desert alarm clock with a noisy tail.
Rattlesnake vs Sea Lion
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.
Sea Lion
Zalophus californianus
Sea lions can hold their breath for about 10 minutes.
Fish, squid, and the occasional unfortunate leftover from the ocean buffet.
Who do YOU think wins?

Sea Lion
A barking torpedo in a wet tuxedo.