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 ...

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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 ...

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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 ...