Blaire Van Valkenburgh, UCLA (IMAGE)

University of California - Los Angeles

Blaire Van Valkenburgh, UCLA

Caption

Biologist Blaire Van Valkenburgh has spent more than three decades studying the skulls of large carnivores. Here she displays a replica of a saber-toothed cat skull. At left are the skulls of a spotted hyena (in white) and a dire wolf (the black skull).

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Christelle Snow/UCLA

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