What does birdsong mean? Do other animals also sing? Or is song a uniquely human invention?
Electric eels are living batteries that taser their prey with 860-volt jolts. Sharks use electricity like an extra sense to see fish and sneak up on them. Spiders fly using the atmosphere’s electric charge, and bumblebees and flowers communicate through their personal electric fields. How else does the natural world use electricity?
Moths, sharks, seahorses, stick insects, crab spiders and spider crabs all use different forms of disguise to hide from those who want to eat them—or to better ambush their prey. What can we learn from them?
Fish taste with their fins. Butterflies taste with their legs. Octopuses taste with everything. Cats can’t taste sugar. So, why do humans taste only with their tongues, when there are taste receptors all over the human body?
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