Samantha Price on how blue whales grew big eating tiny creatures

Samantha Price discusses how the 160-metric ton blue whale evolved a huge mouth - allowing it to eat millions of krill each day.

Glenn Plumb: Oil spill is harming base of Gulf food chain

"If we anticipate that this is a short-lived event, with a short-lived disturbance, then we’re probably not anticipating the right scenario," Glenn Plumb said.

How did plants come to have seeds?

In many modern plants, seeds are contained within a fruit. Long ago, some plants developed spores, which ultimately evolved into seeds.

Sam Ohu Gon says native Hawaiian plants and animals becoming rare

Invasive species brought by visitors – plus impending climate change – are threatening native Hawaiian plants and animals, Sam Ohu Gon says.

Are ocean currents likely to carry spilled oil to Atlantic?

Are ocean currents likely to carry oil from the BP spill out of the Gulf of Mexico and into the Atlantic? Many news organizations reported the answer was yes.

Carl Safina on World Oceans Day 2010

Carl Safina speaks on the state of Earth’s oceans - including the devastating oil spill in the Gulf of Mexico.

Dan Doctor on the May 2010 sinkhole in Guatemala City

Dan Doctor discusses, a sinkhole suddenly opened up in Guatemala City, swallowing a three-story building and leaving a steep, 100-foot deep hole.

Jeff Pettis on the continuing mystery of honeybees’ decline

Jeff Pettis discusses four years after the bee decline began, U.S. honeybees are still ailing, and human intervention is needed to keep their numbers strong.

Peter Gleick with more reasons to stop drinking bottled water

World renowned water expert Peter Gleick has a new book outlining the scientific evidence that bottled water use in the U.S. has become unsustainable.

BP oil spill worst case scenario for sea life

Worst case scenario for the BP oil spill is yet unknown. One researcher compared the situation to "a war where the enemy shifts its points of attack daily."