U.S. Senator Marco Rubio is calling on President Barack Obama to declare a state of emergency to help businesses harmed by the massive algae bloom fouling some of Florida's southern rivers and beaches.
Shark encounters and sightings along California's coast are at their highest level in decades, scientists say, warning that warmer waters mean beachgoers will have to be on the lookout for the predators all summer.
Antarctica's ozone hole finally is starting to heal, a new study finds.
Some call it the Cecil the lion effect.
Dozens of caimans are on the verge of death because of a harsh drought that has hit a wide desert zone of Paraguay known as the Chaco Boreal.
A frontier town that juts into a hostile neighboring country and has a long history of militants firing upon it doesn't seem like a typical place to seek serenity. But that's exactly what you will find in Metulla, Israel's most northerly point, which is engulfed by Lebanon on three sides but which is home to a nature reserve.
As harbor seals are being born in the U.S. Pacific northwest, marine mammal advocates up and down the West Coast are urging people not to touch or pick up pups that come up on beaches and shorelines to rest.
Before moviegoers return to Pandora, they'll be able visit the exotic alien world from "Avatar" on their smartphones.
In a case that could have big implications for dams and other development in the U.S. northwest, a federal appeals court panel said Monday that Native American tribes have a right not only to fish for salmon...
As the largest international gathering of coral reef experts comes to a close, scientists and policy makers are moving ahead with plans for action to save the world's reefs, which are being rapidly damaged.