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Killing of methane-producing megafauna may have caused cooling 13,000 years ago

Killing of methane-producing megafauna may have caused cooling 13,000 years ago

New world megafauna such as mammoths, bison and camelids that were alive at the end of the Pleistocene epoch (some 13,000 years ago) would have produced massive amounts of methane-rich flatulence and belching, thanks to the cellulose-digesting microbes in their guts. [...more]

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Tiny, new brains prove just as adept as large, mature brains among tropical orb-web spiders

Tiny, new brains prove just as adept as large, mature brains among tropical orb-web spiders

When it comes to brains, is bigger better? Can the tiny brain of a newly hatched spiderling handle problems as adeptly as the brain of a larger adult spider? [...more]

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Transmitters unveil long-distance movements of orchid bees

Transmitters unveil long-distance movements of orchid bees

Now, for the first time ever, researchers at the Smithsonian Tropical Research Institute are able to track the routes of these creatures by gluing tiny transmitters to the backs of individual bees. [...more]

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Two new frog species discovered in Panama’s fungal war zone

Two new frog species discovered in Panama’s fungal war zone

“We are working as hard as we can to find and identify frogs before the disease reaches them, and to learn more about a disease that has the power to ravage an entire group of organisms,” said Roberto Ibanez, research scientist at STRI and local director of the Panama Amphibian Rescue and Conservation Project. [...more]

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Net survey: For quarter century, scientists have been counting creatures traveling Chesapeake Bay tributary

Net survey: For quarter century, scientists have been counting creatures traveling Chesapeake Bay tributary

More than 25 years ago, researchers at the Smithsonian Environmental Research Center's Fish and Invertebrate Ecology Lab began taking weekley surveys of the species that make their way in and out of Muddy Creek. [...more]

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Census reveals 1,200 howler monkeys living on Barro Colorado Island

Census reveals 1,200 howler monkeys living on Barro Colorado Island

Long before dawn on a recent morning, Katie Milton and a group of stalwart volunteers, each armed with flashlight and compass, spread out into the jungle to take up positions at 35 listening stations marked on maps of the island. [...more]

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National Zoo’s giant panda Mei Xiang is not pregnant

National Zoo’s giant panda Mei Xiang is not pregnant

Based on current hormone analyses, and not having seen a fetus during the ultrasound exams, Zoo researchers have determined that Mei Xiang experienced a pseudopregnancy. [...more]

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Technology developed for X-ray astronomy is being adapted to study cancer cells

Technology developed for X-ray astronomy is being adapted to study cancer cells

Eric Silver of SAO is pursuing innovative and interdisciplinary uses of his technique for chemical imaging at the cellular level. [...more]

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Science Spotlight

Kiwis come to National Zoo. The Smithsonian’s National Zoo will be using a new kiwi pair donated by the New Zealand Embassy to establish a breeding science center. Both birds came from the Ngati Hine people in New Zealand. Adding these animals to the genetic pool in North America is a rare and valuable opportunity. This pair came with another pair that will continue on to Germany and one bird that went to the San Diego Zoo. Kiwis are native to New Zealand and have been there for more than 60 million years, making them New Zealand’s most ancient bird. (Photo by Mehgan Murphy)

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