This piece was submitted by Kieran Suckling, executive director and co-founder of the Center for Biological Diversity. The last known jaguar in the United States was killed Monday in what is ...

[I'm out in Grand Staircase-Escalante National Monument for some late season fieldwork this week. Here's an essay from the archive, originally posted on October 24, 2011.] The Page Museum at the La ...

This is your first of three free stories this month. Become a free or sustaining member to read unlimited articles, webinars and ebooks. The American jaguar, Panthera onca, has been in science and ...

TUCSON, Ariz. — The first publicly released video of the only known wild jaguar in the United States shows the giant cat roaming around a creek and other parts of a mountain range in southern Arizona.