Reindeer population decreasing: Here’s how animals are weathering warming holidays

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

Nearly half of reindeer have been wiped out and armadillos are in Iowa. Here’s how animals are weathering warming holidays

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.
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From record warming to rusting rivers, 2025 Arctic Report Card shows a region transforming faster than expected

The past water year, October 2024 through September 2025, brought the highest Arctic air temperatures since records began 125 ...

Uncovering the mystery of how algae makes snow green, red or orange

Snow isn't always white; algae can make it look green, red, or orange, and scientists are trying to understand how and why these colorful patches appear.