Sharks can hear sounds nearly 250 feet away and find the source

Sound travels through the ocean carrying clues about potential prey, predators and other animals, giving sharks an important way to detect what they cannot yet see. But exactly how far a free-swimming shark can hear a sound—and ...

We're surprisingly close to conserving 30% of the world's land

In an effort to conserve the world's plants and animals, governments have pledged to conserve 30% of the planet by 2030. Official figures suggest that attempts to reach this target on land have stalled, but a new study led ...

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