Biodiversity

"Gill nets and a tippy rowboat are being used this month to pluck thousands of alien critters out of San Francisco's Mountain Lake as part of an innovative effort to resurrect the area's ecological history."

"The West Nile virus epidemic of 2012, the worst in a decade, may be notorious for yet another reason: The virus, in some cases, is attacking the brain more aggressively than in the past, raising the specter that it may have mutated into a nastier form, say two neurologists who have extensive experience dealing with the illness."

"Twenty-five species of humans' closest living relatives -- apes, monkeys and lemurs -- need urgent protection from extinction, a report by international conservation groups said on Monday."

"The salamander, long a metaphor for the Mexican soul, risks extinction unless its sole habitat, the canal system of Xochimilco, can be restored."

"Approval of foods from genetically modified animals is unjustifiably slow, scientists say; some are looking abroad."

"LONDON -- In a study that prompted sharp criticism from other experts, French scientists said on Wednesday that rats fed on Monsanto's genetically modified corn or exposed to its top-selling weedkiller suffered tumours and multiple organ damage."

"CLARKSVILLE, Tenn. -- Conservationists have built an artificial bat cave deep in the Tennessee woods to see if it can be a blueprint for saving bats who are dying by the millions from a fungus spreading across North America."

"An environmental group asked the U.S. government on Thursday to consider classifying the orange clownfish -- Nemo, to a whole generation of children -- as endangered."