From the air, the last gasp of the Colorado River is sudden and dramatic. 

A young squirrel lucky enough to take over territory from an adult male squirrel is like a teenager falling into a big inheritance, according to a new University of Guelph study.

The effects of climate change are especially obvious in arid environments where resources are scarce and subject to seasonal availability. 

World Whale Day (February 16) is almost here and that means it’s time to celebrate Whale Week, which encompasses all cetaceans, large and small, from the blue whale to the harbor porpoise.

A three-week expedition off the coast of Costa Rica has just expanded our knowledge of deep sea ecosystems in the region. 

What do you do when you have too much data?

Communities in a remote Russian Arctic archipelago have been overrun by dozens of hungry polar bears, forced onshore by thinning sea ice and restricted access to food.

A James Cook University scientist says the last coastal stronghold of an iconic predator, the endangered Bengal tiger, could be destroyed by climate change and rising sea levels over the next 50 years.

Humans have a "disproportionately huge effect" on the other species of vertebrates that share Earth's surface with us, causing more than 25 percent of the deaths among an array of species all over the globe, according to a recently published study.

Radiotelemetry is the use of tiny radio transmitters, worn by animals, which emit radio waves that can be detected several hundred meters away.