Earth & Sky

Global warming could push ocean life in new directions, warns Jorge Sarmiento of Princeton University. Hear about Sarmiento’s research on how small temperature changes could have a big impact on ocean biology.

Spotted hyenas are very social animals. They rely on a wide range of vocal communication. Hear from a scientist trying to understand hyenas’ giggles and groan, and hear the hyenas themselves.

“Animals are just so there in the moment, perhaps their joy is richer than human joy and their grief is deeper than human grief.” said Mark Bekoff, evolutionary biologist at University of Colorado. Bekoff talked to EarthSky about animal joy and animal sorrow.

In a first for the U.S., shipping lanes have been moved to avoid collisions with whales. Hear David Wiley, of the Stellwagen Bank National Marine Sanctuary, who led the science to protect whales from the nearly 5,000 ship transits each year.

Shark expert “Dr. Hammerhead” follows hammerhead sharks on their ‘superhighways’ in the sea, starting at the Galapagos islands.

Bees began disappearing from commercial hives in the U.S. two years ago. In 2007, beekeepers lost 37 percent of their colonies. Honey bees are still leaving their hives and not returning. And scientists still aren’t sure why.