A robo-squirrel interacts with a rattlesnake in an experiment that first demonstrated infrared communication in animal interactions. Rulon Clark, San Jose State University/Courtesy photo
A robotic Anolis gundlachi lizard, right, attracts the attention of a live male by performing four-legged press-ups. Terry Ord/Courtesy photo
A mechanical squirrel with a heatable tail is prepared for field work in UC Davis professor Sanjay Joshi's engineering lab. Andy Fell, UC Davis/Courtesy photo
Gail Patricelli is using a remote-controlled sage-grouse to study the mating habits of the species' dwindling population in Wyoming. Gail Patricelli/Courtesy photo

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