The habits of a needle-toothed tetrapod which lived more than 370 million years ago have filled in a piece of the evolutionary puzzle thanks to new research. An international team of palaeontologists ...

NOVA: What exactly is a tetrapod? Clack: A tetrapod is an animal with four legs—you, me—or an animal whose ancestors had four legs. So I can talk about a frog, which jumps; a bird, which flies; a ...

Here’s what you’ll learn when you read this story: The common ancestor of all tetrapods (including humans) was previously thought to have emerged at the dawn of the Carboniferous period. Fossilized ...

If you want to see concrete evidence of evolution, look no further than your hand or your foot. Five fingers, five toes. There's nothing magical about the number, yet five digits at the end of their ...

image: Tetrapod dentary in a rock matrix. Superbly preserved fossils from Russia, excavated with support of a grant from the National Geographic Society and described today by an international team in ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Millions of years before Tyrannosaurus rex stalked the Earth, a ...

PORTLAND, Ore. — A new shape for semiconductor nanocrystals—tetrapods, rather than simple spheres, rods and disks—could double the efficiency of “plastic” solar cells, according to the inventor of ...

Superbly preserved fossils from Russia cast new and surprising light on one of the earliest tetrapods -- the group of animals that made the evolutionary transition from water to land and ultimately ...