Genetic analysis of the American eel helps explain its decline

The American eel has been a concern for the U.S. Fish and Wildlife Service since 2007, when it was first considered for, but failed to receive, Endangered Species Act protection. The numbers of these slender, slimy, ancient ...

A better pregnancy test for whales

It's not easy to do pregnancy tests on whales. You can't just ask a wild ocean animal that's the size of a school bus to pee on a little stick. For decades, the only way scientists could count pregnant females was by sight ...

Groups, US reach settlement on predator-killing poisons

U.S. officials have agreed to complete a study on how two predator-killing poisons could be affecting federally protected species as part of the settlement of a lawsuit filed by environmental and animal-welfare groups.

Trump administration urged to avoid salmon protection rules

A group that represents farmers is calling the costs of saving imperiled salmon in the largest river system in the Pacific Northwest unsustainable and is turning to the Trump administration to sidestep endangered species ...

US rejects protections for greater sage grouse across West

The greater sage grouse, a ground-dwelling bird whose vast range spans 11 Western states, does not need federal protections, the Interior Department said Tuesday, following a costly effort to reverse the species' decline ...

Feds say New England cottontail doesn't need protection

The federal government said Friday that public and private conservation efforts have helped the New England cottontail rebound to the point where it can be taken off the list of species under consideration for protection.

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