From Santa’s reindeer and the Hanukkah armadillo to some very festive sea worms, our changing world is changing life for creatures great and small.

A genetic analysis of polar bears in southeast Greenland found that genes related to heat-stress, aging, and metabolism are ...

During the winter, as the cold nights draw in, many people like to curl up by the fire with a soft blanket and a hot drink to ...

Reindeer populations could decline 50% by century's end. Cocoa crops are failing. And the odds of snow on Dec. 25 are ...

The snowy owl (Bubo scandiacus) is another Arctic animal well-suited to life in snowy conditions. Adult males are almost ...

The Southern Ocean is one of the most remote places on Earth, but that doesn't mean it is tranquil. Tumultuous waves that can swallow vessels ensure that the Antarctic Peninsula ...

Southeast Asia’s Mekong River is one of the world’s most diverse and productive freshwater ecosystems, home to more than ...

From ramping up hot chocolate prices to threatening reindeer populations, global warming is taking a toll on the holiday ...

The past water year, October 2024 through September 2025, brought the highest Arctic air temperatures since records began 125 years ago, including the warmest autumn ever measured and a winter and a ...

Winter may seem quiet and uneventful, but for many animals, it is one of the most active and dynamic times of the year. While many species retreat into hibernation or head south, a surprising number ...

Breaking Down Arctic Amplification Surface temperatures in the Arctic have warmed more than twice as fast as the global average initially, but in recent decades, the Arctic has even warmed almost four ...

Scientists fear warming is driving a collapse in the ocean currents that shape climate far and wide. The ice-choked waters off Greenland might hold the key. Scientists fear warming is driving a ...