Between snowy winters and holiday songs, many animals come to mind during Christmas. There are polar bears wearing Santa hats and red-nosed reindeer pulling Santa’s sleigh. Turtle doves and the ...

When it comes to Arctic apex predators, the polar bear is the first animal that typically comes to mind. It’s a top predator, feasting on seals and occasionally other sea mammals. Its hunting skills ...

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it’s telling us something about what the planet’s ...