EnvironmentJuly 24, 2008
A Shark Tale: Are These Mighty Ocean Predators in Trouble?
Humans may fear them, but sharks are crucial to keeping oceans healthy
Stories by Hilary Parker
EnvironmentApril 28, 2008
Cuddly Squirrel or Gray Menace?: When Invasive Species Pose an Environmental Threat
Scientists find themselves choosing between animals as explosions of some populations endanger others