Penguins at the St. Louis ventured outside of their enclosure on Wednesday for a day of fun in the snow. Video courtesy of the St. Louis Zoo ...

An international team of scientists say they’ve successfully drilled one of the oldest ice cores yet, penetrating nearly 2 ...

An Emperor penguin was tired, hungry, and underweight after swimming 2,100 miles to Australia from Antarctica.

A cold-plunge craze is spreading, with celebrities and influencers touting the sport as having transformative benefits for ...