Evolution | Science News



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baleen whale

SEA GIANTS  Some species of baleen whales, a group that includes southern right whales, are among the largest creatures that ever lived. Spying on Whales explores how the animals got so big and other aspects of cetacean evolution.

vervet monkey

AIRING OUT  A vervet monkey displays descended blue balls in a thin, unprotected scrotum. The male ancestor of placental mammals also sported descended testicles, rather than undescended ones like a few mammal species, a new study suggests.

two northern quolls

UNAFRAID  Conservationists isolated a population of northern quolls, such as these pictured, on a predator-free island to attempt to build back their numbers. After 13 generations, the quolls lost their fear response to predators.

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