
Rattlesnake
A desert alarm clock with a noisy tail.
Rattlesnake vs Gazelle
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.
Gazelle
Eudorcas thomsonii
Thomson's gazelles can keep a fast pace longer than a cheetah's sprint lasts.
Short grass. They like the lawn freshly mowed by bigger grazers.
Who do YOU think wins?

Gazelle
A spring with horns and a stotting hobby.