
Rattlesnake
A desert alarm clock with a noisy tail.
Rattlesnake vs Cougar
Tonight's science rumble is set in a sunny arena with a splash pool nobody is allowed to hog. 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.
Cougar
Puma concolor
Also called puma, panther, and mountain lion. Same cat, many nametags.
Deer are favorite. Also raccoons, hares, and whatever the neighborhood offers.
Who do YOU think wins?

Cougar
The quiet jumper with a hundred nicknames.