Animals
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AnimalsFirst living fish leaves ‘endangered’ list
Twenty-one years ago, a minnow facing a high risk of extinction was placed on the U.S. Endangered Species List. With help from scientists, the fish appears to have largely recovered. It’s the first ‘listed’ fish to do so.
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AnimalsA weekend for the birds
February 14 to 17 is this year’s Great Backyard Bird Count. It offers an opportunity to not only learn about the birds in your neighborhood but also contribute to science.
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AnimalsDissecting the dog paddle
Scientists occasionally describe the dog paddle as a “trot,” but that’s not right. When dogs swim, their complicated leg motions look more like a frantic run.
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AnimalsWild medicine
Few veterinarians are available to treat sick animals in their natural environment. Fortunately, some critters can doctor themselves.
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AnimalsThe bad-breath defense
The nicotine in tobacco that poisons some creatures can also act as a chemical defense — at least for some caterpillars. The bad breath it gives these insects repels natural predators, such as spiders.
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AnimalsWhy are bees vanishing?
Scientists find evidence that pesticides, disease and other threats are devastating bees. And that could hurt farmers big time.
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AnimalsHow seahorses use their heads
A dwarf seahorse’s head may look funny, but its shape allows the creature to sneak up on fast-moving prey.
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AnimalsLook ma — no stomach
Many animals can digest their meals without an acid-producing stomach. And research now shows they jettisoned those stomachs a long, long time ago.
By Susan Milius -
LifeCaught in the act
Scientists observe some evolutionary speed demons as they adapt over the course of just a few years to new environmental conditions.
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AnimalsMimicking mussels’ muscle
People who seek to get a grip on something — especially in wet environments — might want to take a lesson from some common shellfish. Among those who might benefit most: surgeons.
By Sid Perkins -
AnimalsKoalas’ very deep voice
Serenading males can sing some surprisingly low notes, and scientists have just uncovered how they do it.
By Beth Mole -
AnimalsAnts on guard
Tiny insects can take on big critters — from fly larvae to giraffes — in defense of their home, sweet home. And that home pays them back for this help.
By Roberta Kwok