Killer whale doctors use dart guns, drones, and dogs to treat their orca patients as population numbers plummet

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An orca swimming up to a cruise boat.
An orca swimming up to a boat.

Chase Dekker Wild-Life Images / Getty Images

AI flood prediction could save lives as increasingly dangerous flooding threatens a fifth of the world

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A man tries to ride a bicycle through a flooded street.
A Brooklyn neighborhood experienced major flooding during Hurricane Sandy.

New York Daily News/Getty Images

Cockatoos dip their crackers in water like cookies in milk, according to a study that shows the parrots are surprisingly picky about texture

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A photo of a cockatoo looking at the camera with its head turned perpendicular to the frame.
Cockatoos might be picky about the texture of their food.

Andrew Holt/Getty Images

A geoscientist explains what would happen if Earth suddenly stopped spinning

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Illustration of Earth, moon, and sun.

ratpack223/Getty Images

Can "golden fiber" from swamp reeds replace plastic?

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About 20 years ago, Bangladesh became the first nation on Earth to ban single-use plastic bags. Since then, plastic pollution has gotten worse. To find a biodegradable replacement, the government turned to jute, a cash crop grown here for centuries.

The best landscape photos of the year

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El Chalten, Patagonia.
El Chalten, Patagonia.

Matt Meisenheimer/The 10th International Landscape Photographer of the Year

Inside Zap Energy, the Bill Gates-backed company that wants to bring fusion power to the electrical grid

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A large amount of machinery in a warehouse including some behind a chain-link fence
The Z-pinch machine, FuZE, at Zap Energy could someday produce fusion reactions.

Jenny McGrath/Business Insider

Your houseplants were 'forged in the war of nature' to be pretty and poisonous, says an evolutionary biologist

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A dumb cane or Dieffenbachia plant with large dark and light green leaves
Dieffenbachia are pretty, popular houseplants that are also poisonous.

DeAgostini/Getty Images

Finnish people may be some of the happiest in the world but they also have several unusual traditions. Here are 5 surprising facts about the world's happiest country.

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finnish sauna

HQuality/Shutterstock

Colorado has released 10 gray wolves into the wilderness. The predator was eradicated from the state in the 1940s.

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gray wolf
Colorado has released 10 gray wolves into the wilderness as part of an effort to reintroduce the apex predator to the state.

Colorado Parks and Wildlife

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