Biodiversity

"ANCHORAGE, Alaska -- Two types of ice seals joined polar bears Friday on the list of species threatened by the loss of sea ice, which scientists say reached record low levels this year due to climate warming."

"Salmon that has been genetically engineered to grow twice as fast as its natural counterpart inched a little closer toward the nation’s dinner tables on Friday."

"MIAMI — Though still depleted in its historic home in the Everglades, the wood stork has expanded its range and numbers in the nearly 30 years since it was declared at risk of extinction."

"The marine conservation group Sea Shepherd has scored a propaganda victory over Japan after it emerged it had bought its newest anti-whaling vessel from the Japanese government, apparently without its knowledge."

The American chestnut once dominated the forest landscape from Georgia to Maine. Then the blight struck, and by the 1950s, it was all but extinct. Now, after 30 years of breeding and crossbreeding, the American Chestnut Foundation believes it has developed a blight-resistant tree.

"Cheatgrass is about as Western as cowboy boots and sagebrush. It grows in yellowish clumps, about knee high to a horse, and likes arid land. One thing cheatgrass does is burn — in fact, more easily than anyone realized. That's the conclusion from a new study that says cheatgrass is making Western wildfires worse."

"MIAMI -- The battle to control Burmese pythons in the Everglades has employed an array of tactics to date, including snake-sniffing dogs, GPS-equipped 'Judas' snakes and teams of state-licensed reptile wranglers."

"CHICAGO — A federal judge Monday threw out a lawsuit filed by five states that want barriers placed in Chicago-area waterways to prevent Asian carp from invading the Great Lakes, but said he would consider new arguments if the case were filed again."