
Walrus
A tusked sofa that rules the ice.
Walrus vs Rattlesnake
Tonight's science rumble is set in the visitor lawn, now closed for SCIENCE. No snacks were harmed.
Walrus
Odobenus rosmarus
A walrus mustache has hundreds of whiskers, each a sensor.
Clams, mostly. Sensitive whiskers find shells in the dark mud.
Rattlesnake
Crotalus atrox
A new rattle segment is added each time they shed.
Mice, rats, rabbits — small warm snacks of the desert.
Who do YOU think wins?

Rattlesnake
A desert alarm clock with a noisy tail.