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From two experts on wild parrot cognition, a close look at the intelligence, social behavior, and conservation of these widely threatened birds. Pe...

The kea, a crow-sized parrot that lives in the rugged mountains of New Zealand, is considered by some a playful comic and by others a vicious kille...

The biological functions of coloration in animals are sometimes surprising. Color can attract mates, intimidate enemies, and distract predators. Bu...