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LUNCH COMES WITH
         HIGH-SPEED DELIVERY

         The little gnat sitting in the grass never saw it coming.
         And how could it? A tree frog’s tongue can move faster
         than 20 mph—and most frog species are able to catch
         prey with their tongue more quickly than we can blink.                THEY ALL CROAK ALIKE?
         Furthermore, a captive insect is moved toward a frog’s                DON’T YOU BELIEVE IT!
         mouth at 12 times the acceleration of gravity. By way of              The roughly 7,000 species of frogs and toads can produce an
         comparison: Astronauts typically experience three times               incredible variety of sounds. Some croak while others chirp,
         the acceleration of gravity during the launch of a rocket.            whistle, peep, honk, cluck, bark, or grunt. Over the course

                                                                               of evolution, each species of frog has developed its own
                                                                               distinctive mating call. You can tell just how popular and
                                                                               contested a particular pond is by listening to the number
                                                                               of different sounds its amphibian inhabitants are making.































































         60 MILLION YEARS
         PACKED INTO 12 WEEKS
         While it took about 60 million years for fi sh to evolve into land animals,
         a modern frog requires about 12 weeks for the same transformation.
         The metamorphosis from egg to tadpole to frog has been classifi ed in
         46 developmental stages. Tadpoles are still vegetarian, mostly eating
         algae and pollen, but an adult frog is a carnivore that consumes live
         animals from the moment it sets foot on land: The preferred foods at
         the top of a frog’s menu are dragonflies, beetles, and earthworms.




                                                                                                                            ideasanddiscoveries.com  13  Nov 2018
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