black-footed

A native of North America's western prairie, the black-footed ferret was declared extinct in the 1970s.

JoGayle Howard, a National Zoo scientist who helped breed giant pandas, dies at 59 2011

Since the 1980s, more than 6,500 black-footed ferrets have been born, and many have been released into the wild.

JoGayle Howard, a National Zoo scientist who helped breed giant pandas, dies at 59 2011

Such measures have helped 64 species recover, including the several that were eradicated in the wild but then reintroduced, such as the California condor and black-footed ferret in the United States and Przewalski's horse in Mongolia.

One-fifth of world's back-boned animals face extinction, study warns Jonathan Watts in Nagoya 2010

Later, she again adapted insemination techniques for the black-footed ferret, once the most endangered species on the continent.

JoGayle Howard, a National Zoo scientist who helped breed giant pandas, dies at 59 2011

Later, she again adapted insemination techniques for the black-footed ferret, once the most endangered species on the continent.

JoGayle Howard, a National Zoo scientist who helped breed giant pandas, dies at 59 2011

In addition, 160 species of vertebrates, two species of rattle snakes, hawks, weasels, skunks, badgers, bobcats, coyotes, foxes and the endangered black-footed ferret prey on prairie dogs.

Dr. Reese Halter: Protecting Our Wild Prairies Dr. Reese Halter 2010

Below the earth were the tunnels of plowing and burrowing badgers, prairie dogs, black-footed ferrets, mice, foxes, skunks, marmots, thirteen-striped chipmunks and ground squirrels, their subterranean work loosening and aerating the soil, allowing rainfall and snowmelt to recharge the water table below.

Bird Cloud Annie Proulx 2011

On to Jamon Iberia de Bellota 2 oz., $42, a luxurious rare imported ham from black-footed Spanish pigs which have been fed exclusively on acorns at the end.

Jay Weston: Why Bazaar's Spanish Chef Got a James Beard Award Jay Weston 2011

Below the earth were the tunnels of plowing and burrowing badgers, prairie dogs, black-footed ferrets, mice, foxes, skunks, marmots, thirteen-striped chipmunks and ground squirrels, their subterranean work loosening and aerating the soil, allowing rainfall and snowmelt to recharge the water table below.

Bird Cloud Annie Proulx 2011

She wrote more than 100 peer-reviewed research articles and received many professional recognitions, including a Recovery Champion award from U.S. Fish and Wildlife Service for her work with black-footed ferrets.

JoGayle Howard, a National Zoo scientist who helped breed giant pandas, dies at 59 2011