Air polluted with wildfire smoke can harm animals, too

The Canadian wildfires that are burning out of control have brought hazy skies and polluted air to parts of the United States unprepared for it—and that's affecting not just the people, but their pets and livestock, too.

In a changing ecosystem, Yellowstone grizzly bears are resilient

Grizzly bears in the Greater Yellowstone Ecosystem have been able to gain the body fat they need for hibernation even as population densities have increased and as climate change and human impacts have changed the availability ...

Spain, Portugal smash April temperature records

Mainland Spain and Portugal have broken temperature records for April, officials said Friday, as both nations wilt in an unusually early heatwave that has raised the risk of wildfires.

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