Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The clues to their navigation markers lay across the night sky, in the stars. And then there's a little bit of mechanics at play.

Scientists are reporting a global decline in the firefly population. But conservation efforts and some favorable weather may be helping the insects.

The pygmy hippo soared to stardom, largely thanks to her keeper who shared adorable pictures and videos of her on social ...