Earth
Only 3 percent of Earth’s land is unchanged by people
A sweeping survey of land-based ecosystems finds that very few still support all the animals they used to. Reintroducing lost species could help.
Ecosystems
Articles on ecosystems
More Stories in Ecosystems
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EcosystemsUrchin takeover underlies California’s vanishing kelp forests
Some 95 percent of kelp forests along its northern coast are gone. Meanwhile, sea otters are helping slow the loss of surviving kelp farther south.
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AnimalsScience and Indigenous history team up to help spirit bears
When scientists and Indigenous people work together, their efforts can benefit bears and people.
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AnimalsExplainer: Black bear or brown bear?
If you see a bear, check size, shape and more to find out what type it is.
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AnimalsChanging people’s behavior can make bear life better
Black bears don’t always live life on the wild side. More and more, they live near people. Here’s how people and bears can get along.
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ClimateChanging climate now threatens northern lakes year round
Lakes in northern climes are getting warmer, and that’s not good for people, plants or animals.
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AnimalsMore playtime and meatier meals might reduce kitty kills
Keeping cats indoors is the best way to prevent them from killing wildlife. But small changes to diet and play can help, too.
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AgricultureHealthy soils are life-giving black gold
Scientists explain why everyone needs to value the soils beneath our feet — and why we should not view them as dirt.
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AgricultureSoil (and its inhabitants) by the numbers
Teeming with life, soils have more going on than most of us realize.
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EnvironmentWhat you can do to improve soils
Soils are the life-sustaining structures under our feet. Here are some tips for keeping soils healthy. First rule of thumb: Give more than you take.