Hyenas are known for their robust and flexible foraging behavior, but researchers caution that in places other than the Serengeti, they may face additional challenges, such as fragmented habitat and intensifying human activity.
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The rate of tree dying in the old-growth tropical forests of northern Australia each year has doubled since the 1980s, and researchers say climate change is probably to blame.
Healthy riparian zones are rich in biodiversity. They filter runoff to provide clean water, control erosion and reduce the amount of sediment entering a water body. They also manage storm water and control flooding, provide habitat for wildlife and shade to cool the water.
The United Nations chief on Wednesday launched a five-point plan to jump-start broader use of renewable energies, hoping to revive world attention on climate change.
Maine is home to the largest moose population in the lower 48 states. But in one of the moosiest corners of the state, nearly 90% of the calves tracked by biologists last winter didn’t survive their first year.
Foresters responding to climate change are experimenting with planting trees in Vermont that typically are found further south. They hope the trees will survive hotter and drier conditions to come.
