Archive for the ‘Populations and ecosystems’ Category

History of fishing - Thursday, May 28th, 2009

A new study finds a surprising number of fish, birds and mammals in the oceans 100 and 1,000 years ago. Can this information help regulators slow the decline of important marine animals?

After the chimp attack - Thursday, March 5th, 2009

We explore the sad saga of pet primates. Are these pets psychologically good for us? For them? Are humans and other primates trading diseases at home, and in the wild?

Bush creates huge Pacific reserves - Sunday, January 25th, 2009

Three giant new reserves, extend 50 miles out from shore, will protect coral reefs, fish, clams, and other life forms. But how effective are marine protected areas?

Fish prove: The eyes have it! - Thursday, October 2nd, 2008

The color, vision and genetics of an African fish all vary depending on the clarity of its home waters. A new study suggests how species can form without geographic barriers.

Coral reefs: Massive threats to survival around the globe - Thursday, July 10th, 2008

Coral reefs are the ocean’s biodiversity hotspots, but a new study finds that one-third of reef-building corals are under some threat of extinction.

Whale research: No killing required - Thursday, January 17th, 2008

Japan says it must kill hundreds of whales each year to do “research” on them; but science has plenty of ways to study whales without killing them. Digital-recording tags, whale songs, even whale scats, are the best ways to study these mysterious marine mammals.

Miracle of winged migration - Thursday, October 4th, 2007

Migration of songbirds, butterflies, turtles and seals. Where does the natural urge to move originate?

Polyandry: Bees do it. What’s the big advantage? - Thursday, July 19th, 2007

A honeybee queen mates with 15 guys. This weakens family ties in the hive, possibly hampering the selfless behavior these bees need for survival. Does polyandry have hidden benefits for bees?

Life within: New study shows beneficial bacterial invasion - Thursday, June 28th, 2007

Without trillions of bacteria in our guts, we die. But how do these bacteria colonize the bug-free human infant just after birth? New study details bacterial balancing act.

Sharks: The Necessary Killer? - Thursday, March 29th, 2007

Big sharks eat little sharks and rays, which eat shellfish. So the ultimate effect of hunting big sharks may be a disappearance of shellfish.

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