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Humans, along with most other vertebrates, yawn. It's likely an ancient behavior with some adaptive advantages. Although we most often associate yawning with boredom or sleepiness, it may serve more ...

I have been a little tied up with other writing duties today, so in lieu of a "normal" post here is another snapshot from my trip to the Bronx Zoo last weekend. It is of a young male gelada baboon ...

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It is of a young male gelada baboon (Theropithecus gelada) that came down to the moat to drink. He had just been involved in a major altercation. The entire troop went running after another young male ...