Biodiversity

Joan Guilfoyle, the new head of Interior's wild horse and burro program, faces a dilemma. The 38,000 animals roaming 34 million western acres are breeding rapidly. If she moves to fast to cull them, she faces the wrath of conservationists; if she moves too slowly, she faces the wrath of ranchers.

"A chemical found in the dogfish shark could be a safe and potent weapon against human viruses, say scientists."

"Federal agencies have changed the designation of loggerhead sea turtles from a single threatened species to nine distinct population segments; five are listed as endangered and four are listed as threatened.

The National Oceanic and Atmospheric Administration and U.S. Fish and Wildlife Service said the change will help scientists tailor conservation efforts to deal with threats faced by genetically distinct groups of the species in regions around the world.

"In a move hailed by conservation activists, President Barack Obama initiated potential diplomatic sanctions against Iceland this week for its commercial whaling activity. The sanctions include six measures ranging from possibly limiting cabinet-level visits to Iceland to limiting cooperation with Iceland in the Arctic region."

"Members of Congress are pushing to stop the Food and Drug Administration (FDA) from approving genetically engineered salmon, saying not enough is known about a fish they say could harm fishery businesses in coastal states. It appeared last year that the FDA might approve the engineered salmon quickly. But the congressional pushback and a lack of action by the FDA could mean the fish won't be on the nation's dinner tables any time soon."

"Ancient Andean crops and farming methods are revived as Peruvians struggle to deal with the effects of climate change."

"EAST SAND ISLAND, Wash. — It's been a dozen years since the federal government moved thousands of black-capped squawking seabirds here to reduce their diet of endangered fish. Things haven't exactly gone as planned."