Cattle Killing Protection Science 
Animal Ethics
JULY 28, 2008
To the Editor: Re “ Mustangs Stir a Debate on Thinning the Herd ” (front page, July 20): The Bureau of Land Management is charged with protecting wild horses and burros on the Western rangelands. Davis, an emeritus professor of animal science at Oregon State University, says the horses “damage” the environment.
10,000 Birds
JULY 10, 2012
More than 150 bird species are known to have become extinct over the past 500 years, and many more are estimated to have been driven to extinction before they became known to science. An adult (left) and subadult (right) White-backed Vulture with full crops after feeding on the remains of a Lion kill, Ndutu, Tanzania by Adam Riley.
Expert insights. Personalized for you.
40 
Let's personalize your content