"A polar bear has been killed by bird flu as the highly contagious H5N1 virus spreads into the most remote parts of the planet."

"Bird flu is likely to spread further in the Antarctic region, causing immense damage to wildlife, according to experts on the highly contagious disease that has killed hundreds of millions of birds worldwide in recent years."

"Light can be deadly. Many animals and plants are threatened by artificial light. Numerous organisms have found their evolutionary niche in the dark of night, and now have to adapt to bright nights. Not all of them succeed."

"Rudolph’s red nose may have gone down in history, but research says it was probably his shining blue eyes — a common trait among reindeer — that helped keep him and the rest of Santa’s herd nourished."

"Somewhere on a remote mountainside in Colorado’s Rockies, a latch flipped on a crate and a wolf bounded out, heading toward the tree line. Then it stopped short. For a moment, the young female looked back at it’s audience of roughly 45 people who stared on in reverential silence. Then she disappeared into the forest."

"The virus, which recently reached the Antarctic region for the first time, is surging again in North America."

"It may seem counterintuitive to support the annual culling of trees, but environmentalists say Christmas tree farms have ecological benefits."

"Wildlife groups aren’t sure what is worse: That trains have killed more than 63 grizzly bears in northern Montana since 2018, or that Burlington Northern Santa Fe Railroad has seemed to ignore requests to help alleviate the problem."

"Brazil's Congress on Thursday overturned a presidential veto that had struck down the core of a bill to limit Indigenous land claims, setting up a likely clash at the Supreme Court."

"Free-ranging cats hunt or scavenge more than 2,000 species, some of them imperiled, according to a new study."