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Questionable Practices at the Calgary Zoo

Critter News

Another animal dies at the Calgary Zoo and more questions are being raised about their practices. The fatality is one in a string of animal deaths in recent years. In April 2009, unseasonably cold weather froze two whopping crane eggs. They were a part of the zoo’s breeding program for the rare birds.

Zoos 100
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A Strategic Arms Race Among Birds

10,000 Birds

The vast majority of the 10,000+ living species of birds are passerines, and the vast majority of those have a similar system of breeding: Mom and dad bird make a nest and share parental responsibilities roughly equally, if not identically. …because cooperative breeding facilitates defense against brood parasites.

Breeders 201
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How much bird is there, anyway?

10,000 Birds

He had the habit of asking very similar question about the animals featured in his zoology lectures, including basic questions like how big they are, what limits physiology puts on their geographic range, etc. For instance, among animals, booby and noddy combined probably represents the majority of the biomass of the somewhat unusual St.

Mammals 175