nav
Daily Science Webcasts
Each weekday, Pulse of the Planet provides its listeners with a two-minute sound portrait of Planet Earth, tracking the rhythms of nature, culture and science worldwide and blending interviews and extraordinary natural sound.Get more info.
Distributed by NIEonline.com

Narwhals - Sensitivity
How does a whale say 'ouch'? Scientists studying the narwhal's unusual tusk-like tooth try to tackle that problem.
-- Apr 17, 2014

Narwhals - Tubes
Tender teeth hurt, so why would an animal swimming in frigid waters have an 8-foot long sensitive tooth?
-- Apr 16, 2014

Narwhals - Legends
With its long tusk-like tooth and mottled coloration, the Narwhal has intrigued sailors and royalty alike and may have been the inspiration for the Unicorn.
-- Apr 15, 2014

Narwhals - Big Tooth
A fifteen-foot whale with an 8 foot-long tusk may sound like another fish story, but it's not!
-- Apr 14, 2014

Manatees - Molars and More
If they're napping, they can come to the surface and breathe without waking up, just by loosening the muscles that expands the air in their lungs.
-- Apr 11, 2014