Federal regulators have designated a bee species in the continental United States as endangered...

New research finds a small shorebird flies long distances in search of love...

US wildlife officials say it might be time for a toast now that a once-rare bat important to the pollination of the Mexican plants used to produce tequila is making a comeback...

A new study says a distinctive type of tree that thrives in soggy soil from Alaska to Northern California could become a casualty of climate warming over the next 50 years...

A new report finds water clarity in the Chesapeake Bay is the best it's been in decades, and native rockfish, oyster and blue crab populations are rebounding as the overall health of the nation's larg...

Researchers create vaccine using living malaria parasites stripped of genes that make people sick...

Researchers says the oldest member of the small population of endangered Puget Sound orcas has been missing for months and is now likely dead...

A man who was fatally shot by a police officer in Minnesota during a struggle at a hotel has been identified as a biology teacher from the Minneapolis area...

Biogen, Fitbit and Toll Brothers rise; Endologix and Seattle Genetics skid...

New advice says don't cut that umbilical cord too soon: A brief pause after birth could benefit most newborns by delivering them a surge of oxygen-rich blood...