Ancient climate cooling reshaped carnivoran bodies, with fossils revealing how habitats drove species diversity worldwide.

Long before dinosaurs ruled the land, the oceans were already terrifying. Helicoprion and its relatives evolved a jaw unlike anything seen before or since. A spiraling blade of teeth sat inside the ...

In the age of dinosaurs—before whales, great whites or the bus-sized megalodon—a monstrous shark prowled the waters off ...

Then they use the rudimentary spears, which are around 75 centimetres long, to stab bushbabies while they sleep in their ...