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POPSBook: Bats Sing, Mice Giggle more (at source): Among the recent discoveries outlined in their book, Bats Sing, Mice Giggle, is research that elephants are capable of detecting seismic vibrations through the bones in their feet and nerves in their trunks. By producing low frequency rumbles in their calls, elephants can communicate through the ground over hundreds of miles. Researchers studying bats have also found that certain bats produce songs as well as the chirps they use for echolocation and hunting. The false vampire bat, or Megaderma lyra, uses distinctive social calls that sound like songs when recorded and played back at a slower speed, to attract female mates while the sac-winged bat, Saccopteryx bilineata, uses songs to mark out its territory.
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POPSCould dogs be the fastest land animals in the world? His ability to reach top speed quickly is amazing. At maximum acceleration a greyhound can reach a speed of 45 mph (72km/h) within its first 6 strides from a standing start. No other land animal (except the cheetah) has that degree of acceleration. However, the greyhound is also a distance runner. He can settle into a speed in excess of 35 miles per hour and can run at that rate for distances as great as 7 miles (11 kilometres). This means that while the cheetah can win the short sprint race, in any long race the greyhound will leave that big cat way behind, panting in the dust.
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