Three decades ago, scientists began to find razor-sharp teeth from predators that had no business being there.

The well-known salmon life cycle has long been described as going only one way at a time. Juvenile salmon hatch and swim down rivers to the ocean, where they grow and mature before returning to the ...

Researchers at the University of Leicester have been examining the tracks left by a type of pterosaur called Quetzalcoatlus, which had a wingspan of up to 10m (32ft). They believe the quantity and ...

New research reveals that young salmon explore multiple rivers before adulthood, challenging long-held beliefs about their ...

A challenging brainteaser asks players to spot the deer that's hidden within the forest scene – and you'll need sniper-like ...

Footprints over 160 million years old show that several pterosaur species walked on land. These prints match different flying ...

The number of species does not increase evenly when going from local ecosystems to continental scales -- a phenomenon ecologists have recognized for decades. Now, an international team of scientists ...

The ancestors of today’s crocodylians survived two mass extinction events. A new study has revealed a key factor behind their ...