Two Hungarians puzzled by how certain creatures with shells, like turtles and beetles, are able to self-right have developed a shape with one stable and one unstable point of equilibrium to explain ...

Why do sea turtles, softshell turtles and snappers lay round eggs whereas pond sliders and many other turtles have elliptical eggs shaped more like those of a chicken? This question came up recently ...

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It’s night, on a tropical beach, and a 300-pound green turtle is hauling herself up a beach. When she passes the high-tide line, she starts scooping sand away with her hind flippers, creating a deep ...