Cowbird Nestmates
Baby cowbirds live with their host siblings instead of kicking them out of the nest.
Fish Stories
DNA tests show that red snapper in restaurants isn't always red snapper, and salmon can be engineered to give birth to trout.
Blackout Air Quality
The August 2003 blackout over the Northeast gave scientists a way to measure pollution from power plants.
Alien Species
Releasing tropical saltwater pet fish into the wrong ocean disrupts coral reefs, and a new USDA guide helps people identify invasive plants.
Abrupt Climate Change
The movie, ÔThe Day After Tomorrow' is wildly exaggerated, but evidence does exist for abrupt climate change.
Ecology Roundup
Lake pollution leads to mussel loss, babies of older rockfish grow faster, and exotic ant species can't spread seeds of North American plants.
Gold Mine Quakes
Using seismic data from South African gold mines to learn about small earthquakes
State of the Air
The American Lung Association's annual report on air pollution includes particulates for the first time.
WWII Tree Disease
A fungus brought by American troops during World War II infected Italian trees.
Soil and Global Warming
Soil can be made to retain carbon, which would help prevent global warming.
Kid Health Roundup
A ban on two insecticides has helped improve the health of babies, and video games are violent.
High-Tech Trash
Disposing of computers creates an environmental hazard, especially overseas.
Greedy Computers
Computers consume more resources per pound to make than other machines.
Predator Roundup
Controlling rats and mice suppresses disease outbreaks, and hunting only older lions keeps populations stable.
Hunting and Fishing
Hunters kill the strongest bighorn sheep, thus weakening the population, and modern fish harvesting methods are destroying the environment.
Monogamy Roundup
Monogamous animals are more likely to go extinct, and cohabitating before marriage increases divorce rates.
Squirrel Hoarding
Differences in squirrel hoarding behavior are affecting the makeup of hardwood forests.
Ground Tires
Ground-up scrap tires can be put under golf course greens to filter out contaminants.
Road Rubber
Where does tire rubber go when the tire wears out? (Pieces get airborne or washed into streams.)
Fish Sounds
Testing underwater sounds on fish to lure them away from hydroelectric dams
Bears and Wolves
Thinning arctic ice threatens polar bear habitat, and the reintroduction of wolves is improving the riverside ecosystem.
Plant Punishment
Soybean plants cut off the oxygen to symbiotic bacteria if they stop producing nitrogen.
Salmon and Pollutants
Spawning salmon bring pollutants called PCBs into the freshwater lakes of Alaska.
Bird Rest Stops
Migrating birds don't get the fat and protein they need to make their journeys.