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Fish caught on video using a rock to break open a clam

It isn’t just humans, apes, dolphins, birds, and octopuses who use tools. Even fish have been spied using rocks to break open shellfish — and now a video of an orange-dotted tuskfish doing just that is available to prove the claim. The video was shot by Giacomo Bernardi, professor of…

US scientists find potentially habitable planet near Earth

WASHINGTON — US astronomers said Wednesday they have discovered an Earth-sized planet that they think might be habitable, orbiting a nearby star, and believe there could be many more planets like it in space. The planet, found by astronomers at the University of California, Santa Cruz, and the Carnegie Institution…