Scientists have discovered the oldest known saber-toothed predator, a 270-million-year-old gorgonopsian therapsid fossil.

Scientists conducting a Conservation International survey of Peru's Alto Mayo landscape were surprised to discovery such ...

Now, a team of scientists have found a new fossil that is the oldest of its kind and might even be the oldest therapsid ever ...

A 38-day expedition in the remote Alto Mayo region, where development threatens wild habitats, turned up one previously ...