A study of haze over India shows that aerosols, long thought to be global coolers, can sometimes warm the lower atmosphere just as much as greenhouse gases.
Four rare apes were shot in Africa's Virunga park on July 22. Get up close with other Virunga gorillas as rangers patrol the park to prevent another tragedy.
An influx of voracious jumbo squid in Pacific U.S. waters coincides with a decline in hake, a commercial species used to make imitation crab and fish sticks, a new study reports.
For Antarctica's penguins, the global-warming plot thickens: Some species seem to be adapting to the heat, while others are experiencing a foreboding population decline.
Chinese paddlefish have not been seen in the Yangtze River since 2003 and are likely on the path to extinction, scientists warn. (Second in a series on the megafishes)
Seeding plankton blooms to suck up the greenhouse gas CO2 could grow profits for a U.S. firm—but several scientists and regulators are unsure about the ecological consequences.
The three-year project aims to document the world's largest freshwater fishes, from giant catfish to half-ton stingrays. (First in a new series on megafishes.)