Migaloo, a twentysomething rare white humpback whale was seen this week along Australia's east coast, where he's migrating northward with other humpbacks. Video.
An Indian Ocean island nation has created three new ocean sanctuaries, including a tropical bay where hundreds of 12-foot manta rays and 40-foot whale sharks feast on swarms of plankton and krill.
Some dogs can smell odors given off by humans with bladder cancer and diabetes, researchers say. In some cases, the canines warn of oncoming attacks. Video.
Mating between a native salamander and an introduced species has created a monster—at least for animals that dwell in the ponds of California's Salinas River Valley.
From "fairytale" landscapes to gonad-eating wolffish, little-seen corners and creatures have come to light during the 114 photo missions of the Wild Wonders of Europe project.
Three times longer than today's piranha--and with more teeth to boot--eight-million-year-old Megapiranha solves an evolutionary mystery, a new study says.
It may not have had a trunk or Dumbo ears, but the 60-million-year-old elephant ancestor with proto-tusks looms large in mammalian history, a new study says.
Gene studies linking humans to modern African apes are flawed, says a new study that argues we have more physical traits in common with the orangutans of Southeast Asia.
Who do you want to see receive funding to put their Earth-saving idea into action? Check out the ten Green Effect finalists, and from July 7-20 you can vote—up to once a day—for your favorite idea!