From baby teeth to ‘conveyor belt’ molars, here’s why humans—and other mammals –grow and replace their teeth in such ...

I can still remember the sun burning through the mist. Photography delivers both great images and lasting memories. I spent ...

Giant trevallies leap from the lagoon to snatch tern fledglings mid-air in this dramatic BBC look at a deadly hunting ...

One study from 2015, found that 70% of gifts are duds. No matter. The wrapping keeps the female occupied as the male mounts ...