Birds' beaks may have an evolutionary history that started with an adolescent dinosaur losing its teeth, scientists believe. Limusaurus, which lived 160 million years ago, hatched from its egg ...

Add Yahoo as a preferred source to see more of our stories on Google. A chunk of amber - fossilized resin - spotted by a Chinese scientist in a market in Myitkyina, Myanmar, last year shows the tip of ...

Today’s birds don’t seem quite as threatening as their gigantic dinosaur ancestors, in part because they lack the teeth that make the Tyrannosaurus rex so terrifying. But why don’t today’s birds have ...

Scientists studying a dinosaur called the limusaurus have made a surprising discovery – it developed sharp teeth for eating meat soon after it was born, but lost them as it grew up and became ...