The Pallas's long-tongued bat has a neat trick at the tip of its tongue — tiny hairlike structures that fill with blood and stand straight out. This turns the tongue into a nectar-slurping mop at just the right time.
Miniaturizing technology is really hard — gears, rotors, belts and pistons that work perfectly at human size just don't work very well at the small scale. So researchers are turning to insects for ideas about how to make tiny flying robots and cameras — and driving a new generation of gadgets.
For years, salmon farming has gotten a bad rap from marine biologists, who say the fish grown in open-ocean net pens generate pollution, disease and parasites. But now, a few salmon farms have moved on land. From an environmental standpoint, some scientists say, that's "a huge step forward."
Charles Darwin is known as the father of evolution. But another British naturalist, Alfred Russel Wallace, played a major role in developing the theory of natural selection before fading into obscurity. A trip to what's now Sulawesi in Indonesia, and the unique animals he found there, helped form his seminal ideas.
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