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Hydra, in Greek mythology

(Encyclopedia)Hydra, in Greek mythology, many-headed water serpent; offspring of Typhon and Echidna. When one of its heads was cut off, two new heads appeared. The second labor of Hercules was to kill the monster. ...

bulbul, in zoology, bird

(Encyclopedia)bulbul bo͝olˈbo͝ol [key], bird, common name for members of the family Pycnonotidae, comprising 119 species of medium-sized, dull-colored passerine birds with short necks and wings, native to Africa...

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