What wolves' teeth reveal about their lives

UCLA evolutionary biologist Blaire Van Valkenburgh has spent more than three decades studying the skulls of many species of large carnivores—including wolves, lions and tigers— that lived from 50,000 years ago to the ...

Dog coat patterns have ancient origin

Dogs come in all shapes and sizes, but variations in color patterns provide some of their most distinctive characteristics. A newly released study sheds light on a subset of these patterns, unexpectedly leading to new questions ...

Inbreeding taking toll on Michigan wolves

(AP) -- The two dozen or so gray wolves that wander an island chain in northwestern Lake Superior are suffering from backbone malformations caused by genetic inbreeding, posing yet another challenge to their prospects for ...

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