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The Secrets Inside Your Dog’s Mind

4 The Love Of Animals

Wolves, for example–the probable ancestors of dogs–live in packs that hunt together and have a complex hierarchy. Marc Hauser, a cognitive psychologist at Harvard University, recently opened his own such research lab and has 1,000 dogs lined up as subjects. Other facilities are operating in the U.S. and Europe.

Wolves 100
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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

The majority of wildcats live today in Africa, and virtually none of them have provided the DNA from which supposed histories of domestication have been constructed by researchers. Dogs are similarly dispersed across size ranges, with Foxes, Coyotes, and Wolves taking prey across different parts of the size range. billion birds and 6.9–20.7