Expert marine mammal researchers spotted up to 10 of the porpoises during a recent survey in the Upper Gulf of California.

Sean Jansen set out to walk coast, rivers and mountains where the trout species call home to raise awareness about their ...

An international investigation uncovers how criminal networks traffick parts of the totoaba, an endangered fish caught in Mexico’s Gulf of California, to overseas underground markets. Andrea Crosta, ...

The U.S. Fish and Wildlife Service says it won't craft a nationwide wolf recovery plan, and that wolves no longer need ...

Fish who have never known the river graduated to the wild on Wednesday, when the Albuquerque BioPark and the U.S. Fish and ...

Hundreds of tiny endangered fish slipped from orange plastic buckets into a glittering lagoon in Malibu on Tuesday, returning home five months after being whisked away from threats wrought by the ...

Bergman urges delisting of the gray wolf from endangered species list Washington – Rep. Jack Bergman and a coalition of House ...

A team of researchers that includes Worcester Polytechnic Institute (WPI) computer scientist Kyumin Lee has developed a DNA ...

New Mexico's Department of Game and Fish relocated an endangered Mexican gray wolf Friday, drawing criticism from advocacy ...

The U.S. Fish and Wildlife Service reported last week it will not prepare plans for recovering the gray wolf because the ...