How Unborn Turtle Embryos Use Microscopic Antennae to Detect Nest Temperatures
Deep inside an incubator at Iowa State University in Ames, row after row of plastic containers hold painted turtle eggs nestled in damp vermiculite. To the naked eye, the white, leathery spheres appear completely inert. They do not twitch, peep, or roll. Yet within these shells, a silent, microscopi ...