Polar bears are the largest bear species and are supremely adapted to their Arctic habitat, whether they are prowling the ice or swimming in the sea.
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Chimpanzees are one of our closest living relatives and share many of the same traits as humans. They are highly intelligent and social creatures, but they are also capable of extreme violence.
Giant pandas, known for their distinctive markings and playful personalities, are considered China's national treasure.
Pine Island Glacier, the longest and fastest flowing glacier in Antarctica, has calved multiple icebergs, as can be seen in a series of photos.
The Czech cave was first explored by the divers in 1999, but the abyss has now been access by a robotic vehicle and its depth measured. It is now the world's deepest.
A research vessel meant to ply the polar seas has been graced with the name Sir David Attenborough, though the public's favorite name, Boaty McBoatface, will live on.
Lightning flashing in the sky during volcanic eruptions stems both from ash and from ice, scientists find.
The roar of a volcano erupting on a remote Alaska island reveals important details about the blast, such as its size and location, a new study reports. And now scientists are listening.
Up to 12 massive volcanic blasts occurred between 8 million and 12 million years ago in Idaho's Snake River Plain, leading up to today's Yellowstone supervolcano, new research reveals.
A newly described species of frog is so small that it can sit comfortably on the tip of your thumb, and has a distinctive call that sounds like a cricket's chirp.