26 October 2009, 09:46 AM ET
Wolves' predatory skills peak at age 2 or 3.
01 October 2009, 09:10 AM ET
The catastrophic decline around the world of "apex" predators is causing major economic and ecological disruptions.
02 September 2009, 12:42 PM ET
When a tipping point is coming – be it in ocean circulation patterns, wildlife populations, or even the global economy – it is often heralded by telltale signs, scientists have found.
17 August 2009, 09:26 AM ET
Researcher discovers frogs living in piles of Asian elephant dung.
17 July 2009, 07:39 AM ET
Mega-dung reveals a hidden ecosystem
29 May 2009, 07:32 AM ET
Satellite makes first measurements of red fluorescence from marine phytoplankton.
28 May 2009, 10:03 AM ET
Skin bacteria varies based on conditions such as dry, moist and oily.
22 January 2009, 09:00 AM ET
Monitoring of forest plots finds western tree death rates have doubled, likely due to regional warming.
21 November 2008, 05:28 AM ET
What is the total cost of the introduction of non-native species into the Great Lakes?
18 November 2008, 07:29 AM ET
Technique applied to human gut reveals 10 times more bacteria than thought.
14 August 2008, 10:02 AM ET
Regions of ocean depleted in oxygen increasing, are key stressor to ecosystems.
23 July 2008, 08:35 AM ET
A life spent swimming in the Caribbean sounds ideal. But good luck convincing the resident fish. Already confronted by overfishing, coral bleaching, and increasing amounts of sediment, nitrates, and acid, they have one more enemy to add to this list: lion
17 July 2008, 10:02 AM ET
Iceberg scouring of Antarctic seafloor increasing as warming melts winter sea ice.
24 February 2008, 07:00 PM ET
Increased land use disrupted soils, made West dustier than was in past.
19 February 2008, 07:00 PM ET
Bottom trawling leaves behind huge sediment plumes, damage to ecosystems.
14 February 2008, 07:00 PM ET
If Antarctic waters warm over coming century, could become hospitable to sharks.
13 February 2008, 07:00 PM ET
More than 40 percent of seas are heavily impacted by humans.
14 January 2008, 03:58 AM ET
Climate change may alter ocean ecosystems, shrinking key fish populations.
27 December 2007, 04:52 AM ET
Are artificial reefs good or bad for marine life?
05 November 2007, 12:02 PM ET
Habitats with fewer plant species produce less oxygen, food, fiber overall.
02 November 2007, 08:08 AM ET
A new exhibit features all aspects of water, calls for conservation.
26 October 2007, 06:49 AM ET
Social cliques among wild animals helps to keep populations stable.
17 October 2007, 04:02 AM ET
An invasive marsh plant conquers leafy enemies with toxic acid.
24 August 2007, 04:42 AM ET
A submerged mountain ridge in the North Atlantic is teeming with life.
17 August 2007, 04:46 AM ET
Hanging on a rope no thicker than my thumb about 200 feet above the forest floor ...
03 August 2007, 05:18 AM ET
Only about 10 percent of them are known, scientists estimate.
27 July 2007, 06:30 AM ET
Return of the Yellowstone wolf has elks shaking in their hooves.
16 May 2007, 09:41 AM ET
Finds suggest the Antarctic deep sea is cradle of Earth's marine life.
04 May 2007, 10:24 AM ET
New method calculates space between roads across country.
05 April 2007, 10:00 AM ET
Lowly mushrooms and toadstools are reproducing faster, with truly rotten consequences.
29 March 2007, 10:00 AM ET
As sharks disappear due to overfishing, smaller predators flourish and wipe out lower organisms, a new study finds.
28 February 2007, 06:03 PM ET
Two albino millipedes have come out of their cavernous hiding places and represent an entirely new genus of these leggy organisms.
05 January 2007, 03:05 AM ET
Tree growth in temperate forests is driven by availability of water and not by temperature as previously thought.
02 November 2006, 09:02 AM ET
If the loss of marine species from over fishing and climate change continues at the current rate, all commercial fish and seafood species could collapse by 2048, scientists reported today.
20 September 2006, 08:38 AM ET
Fog that gathers on the trees and drips to the ground creates more precipitation than normal rainfall.
06 September 2006, 12:22 PM ET
Scientists are baffled by the appearance but say it could have been intended as someone's dinner.