MILWAUKEE (AP) - Tigers use a grunt-like snort called chuffing as a greeting, short roars for intimidation and long roars to find mates. Researchers are now trying to use those and other sounds tigers ...
When night falls, a high-stakes acrobatic drama takes the stage, a swirl of bats hunting insects, trying to outmaneuver each other in aerial pursuit and escape. Science reporter Ari Daniel has the ...
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