In a new paper appearing this week in Science, a group of biologists have shown that females themselves can also limit the evolution of increased elaboration.

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On Aug. 10, 1846, U.S. President James K. Polk signed the legislation that established the Smithsonian Institution as a trust administered by a Board of […]

The post Science at the Smithsonian: 165 years of scientific achievement appeared first on Smithsonian Insider.

Kandula, an 8-year-old male Asian elephant at the Smithsonian’s National Zoo, recently demonstrated to researchers for the first time that elephants are capable of insightful problem solving.

The post A first: National Zoo elephant shows insightful problem solving appeared first on Smithsonian Insider.

A new study by a team of scientists from the Smithsonian’s National Museum of Natural History, the National University of Singapore and the Slovenian Academy of Sciences and Arts have unlocked the secret to mate binding in orb web spiders, and revealed just how it calms the cannibalistic female spider.

The post Suitor’s gentle massage soothes aggressive, cannibalistic female spiders, researchers find appeared first on Smithsonian Insider.

Viewed from inside the SOMATOM Emotion 6CT scanner used at the Smithsonian’s National Museum of Natural History, the skeleton and internal organs of this well-preserved […]

The post Peruvian mummy as seen by a SOMATOM Emotion 6CT scanner appeared first on Smithsonian Insider.

Suzan Murray, chief veterinary medical officer at the Smithsonian’s National Zoological Park, recently returned from Hanoi, where she led a team of scientists training pathologists from Laos, Cambodia and Vietnam to better sample, recognize and detect wildlife diseases in hopes of preventing emerging pandemic disease.

The post Q&A: National Zoo veterinarian Suzan Murray is working to halt pandemic disease in hotspots around the world appeared first on Smithsonian Insider.

Small monkey groups may win territorial disputes against larger groups because some members of the larger, invading groups avoid aggressive encounters.

The post Members of small monkey groups more likely to fight, researchers find appeared first on Smithsonian Insider.

Today, Marra is helping launch an Animal Mortality Monitoring Program in Africa intended to serve as an early warning system for emerging infectious diseases that can pass from animal populations into the human population.

The post Uganda park rangers with cell phones may help stop next world influenza epidemic appeared first on Smithsonian Insider.

In fact, researchers have learned, the detached male pedipalps transfer more sperm faster after copulation is ended by the female rather than the male.

The post Male spider’s sexual organs work fastest only when a female breaks them off appeared first on Smithsonian Insider.

The Sun’s Active Region 1429 has been shooting off flares and coronal mass ejections since it rotated into Earth’s view on March 2, 2012. Two X-class flares have been released overnight, an X1.3 and an X5.4.

The post X-Class flares released by the Sun, March 6, captured by Atmospheric Imaging Assembly appeared first on Smithsonian Insider.

A baby boom is underway at the Smithsonian’s National Zoo. Two Guam rail (Gallirallus owstoni) chicks hatched March 3 and 4; they join six others in the Zoo’s collection—three of which live at the Smithsonian Conservation Biology Institute in Front Royal, Va.

The post Extremely rare Guam rails hatch at the Smithsonian’s National Zoo appeared first on Smithsonian Insider.

A new X-ray study of the remains of an exploded star indicates that the supernova that disrupted the massive star may have turned it inside out in the process.

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The only explanation for such symmetry across these vast distances, explains Smithsonian anthropologist Dennis Stanford, is that the method of creating the points was handed down from person to person.

The post 3-D imaging adds remarkable new understanding of North America’s mysterious Clovis people appeared first on Smithsonian Insider.

Scientists from the Smithsonian and University of British Columbia have discovered a sensory organ in the chin of rorqual whales that communicates to the brain. It orchestrates the dramatic adjustments needed in jaw position and throat-pouch expansion to make lunge feeding successful

The post Scientists discover sensory organ in baleen whales that choreographs movement of their massive jaws and throat-pouch appeared first on Smithsonian Insider.

Imagine a gas giant planet spanning three times more sky than the Moon looming over the molten landscape of a lava world. This alien vista exists in the newly discovered two-planet system of Kepler-36.

The post Close encounters between planetary systems of Kepler-36 stun astrophysicists appeared first on Smithsonian Insider.

Coral reefs worldwide are being destroyed by changes in ocean temperature and chemistry faster than at any time since the last reef crisis 55 million years ago, thousands of marine scientists warned from the International Coral Reef Symposium in Cairns, Australia.

The post Coral reef emergency: 2,600 scientists call for worldwide rescue appeared first on Smithsonian Insider.

Astronomers using NASA's Chandra X-ray Observatory have detected X-rays emitted by the debris from the explosion of supernova 1957D.

The post Astronomers discover X-rays from a young supernova remnant appeared first on Smithsonian Insider.

They observed that no plugs were ever formed during mating trials, but instead, females exposed to many males produced the amorphous plugs during the egg-laying process.

The post Female spiders produce mating plugs to prevent unwanted sex from males appeared first on Smithsonian Insider.

The discovery of the first transiting circumbinary multi-planet system: two planets orbiting around a pair of stars, is announced by astronomers.

The post Planetary system orbiting two suns discovered by astronomers appeared first on Smithsonian Insider.

One such parasite lurks in Chesapeake Bay: an invasive barnacle that hijacks a mud crab’s reproductive system and impregnates it with parasite larvae—even if the crab is male.

The post Undersea parasite turns male mud crabs female appeared first on Smithsonian Insider.

The Smithsonian-Mason School of Conservation, a unique program in terms of its academic offerings and contributions to the field of conservation, celebrated the completion of its expansive new academic facilities today, Oct. 18, at the Smithsonian Conservation Biology Institute in Front Royal, Va.

The post Smithsonian Conservation Biology Institute and George Mason University dedicate new academic facilities in Front Royal, Va. appeared first on Smithsonian Insider.

The new Sant Director of the National Museum of Natural History, Kirk Johnson, had only been on the job for 26 days when he got […]

The post Female “spidernaut” settles into new home at Smithsonian’s Insect Zoo appeared first on Smithsonian Insider.

The remora's sucker disc is "one of the most remarkable and most highly modified skeletal structures among vertebrates."

The post New study proves the remora’s sucker disc is in fact a highly modified dorsal fin / Q&A with taxonomist David Johnson appeared first on Smithsonian Insider.

The process of freezing materials such as fertilized eggs – cryopreservation – provides researchers with a tool to repopulate endangered species.

The post Klondike, puppy born from a frozen embryo, fetches good news for endangered animals appeared first on Smithsonian Insider.

Chris Crowe, keeper of the National Zoo’s 15 white-naped cranes, is well acquainted with the strong attachments these graceful Asian birds form with their mates.

The post With no credit to Cupid, white-naped crane couples remain faithful for life appeared first on Smithsonian Insider.

New data from NASA's Chandra X-ray Observatory suggest a highly distorted supernova remnant (shown here) may contain the most recent black hole formed in the Milky Way galaxy.

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March is Women’s History Month and to honor it Smithsonianscience.com presents six images of women scientists selected from the Smithsonian Institution Archvies’s Flicker photoset Women […]

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Recent spectroscopic analysis of macaroni penguin (Eudyptes chrysolophus) crest feathers and king penguin (Aptenodytes patagonicus) neck feathers have shown they contain a yellow pigment that […]

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Douglas Owsley, the division head for physical anthropology at the Smithsonian’s National Museum of Natural History, presented today a forensic analysis of 17th-century human remains […]

The post Forensic analysis of 17th-century human remains at Jamestown, Va., reveals evidence of survival cannibalism appeared first on Smithsonian Insider.

Emmett Duffy, currently the Gluckman Professor of Marine Science at the College of William & Mary in Virginia, has been appointed director of the Smithsonian’s […]

The post Emmett Duffy named director of Smithsonian’s Tennenbaum Marine Observatories Network appeared first on Smithsonian Insider.

The Smithsonian Environmental Research Center has just launched a new series of 15 short educational videos titled “Ecosystems on the Edge,” which mainly focus on […]

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Rooting through the garbage for a late-night snack or stealing food from the cat’s bowl, the suburban raccoon is a nocturnal, intelligent animal. Yet life […]

The post Suburban raccoons more social yet dominance behavior remains that of a solitary animal appeared first on Smithsonian Insider.

Scientists at the Smithsonian Conservation Biology Institute are celebrating the birth of a female Przewalski’s (Cha-VAL-skee) horse—the first to be born via artificial insemination. The […]

The post First wild horse species born from artificial insemination at Smithsonian Conservation Biology Institute appeared first on Smithsonian Insider.

Hellbenders, aquatic salamanders from the eastern United States, are surprisingly good at dealing with unpredictable weather. In a recent study published in the Journal of […]

The post Zoo scientists find sudden stream temperature changes boost hellbender immune systems appeared first on Smithsonian Insider.

Found worldwide in tropical and subtropical seas and oceans, Dolabrifera dolabrifera is a species of sea hare, a marine gastropod mollusk in the family Aplysiidae. […]

The post Sea hare chemical fights leishmaniasis appeared first on Smithsonian Insider.

Scientists from the Smithsonian’s National Museum of Natural History have just named and described the Spectacular Guyane False-form beetle, or Guyanemorpha spectabilis, from Guyane (French Guiana). […]

The post Remarkably large and colorful new beetle discovered in French Guiana appeared first on Smithsonian Insider.

Our solar system seems like a neat and orderly place, with small, rocky worlds near the Sun and big, gaseous worlds farther out, all eight […]

The post Asteroid diversity = “snow globe” Solar System appeared first on Smithsonian Insider.

A newly released study focusing on an extinct species, the Caribbean monk seal (Monachus tropicalis), has revealed just how evolutionarily unique its only two living […]

The post Too valuable to lose: Extinct relative reveals rarity of last two remaining monk seal species appeared first on Smithsonian Insider.

A research team from the Smithsonian and Arizona State University have developed a new, non-destructive method using spectroscopic analysis to help unravel the complex chemistry […]

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Einstein’s Theory of General Relativity predicts that accelerated masses emit gravitational waves, or ripples in space-time. Even though gravitational waves have yet to be detected […]

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Scientists at the Smithsonian Conservation Biology Institute in Front Royal, Va., are celebrating the anniversary of the first birth of a Przewalski’s horse by artificial […]

The post First Przewalski’s horse born by artificial insemination birthday appeared first on Smithsonian Insider.

A new study of microorganisms living on the skin and in the intestines of North America vultures (black and turkey vultures) has turned up a […]

The post Vultures remarkably tolerant to deadly bacteria, study reveals appeared first on Smithsonian Insider.

Cassiopeia A, or Cas A for short, is one of the most well studied supernova remnants in our galaxy. But it still holds major surprises.  […]

The post 3-D Map of Supernova Remnant Reveals Frothy Interior appeared first on Smithsonian Insider.

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disk surrounding a young […]

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Caitlin Burrell, research scientist at the Smithsonian Conservation Biology Institute, returned from China last night April 20, with frozen giant panda semen that had been […]

The post Panda Semen from China arrives at Zoo appeared first on Smithsonian Insider.

Studies show that on average, the weight of cremated remains for men is about 7.13 pounds (plus or minus 1.2 pounds) and for women, 4.9 […]

The post Hi-Tech Analysis Cracks Curious Case of Contaminated Cremains appeared first on Smithsonian Insider.

New data just published in the journal Marine Mammal Science may help save the whales, or at least a good many of them. Using vertebrae […]

The post New study may help free whales from fishing rope entanglement appeared first on Smithsonian Insider.

The Inka Empire is one of the greatest civilizations in the Western Hemisphere, spanning from the 13th century until the Spanish invasion in 1532. To […]

The post 5 Reasons the Inka Road is one of the Greatest Achievements in Engineering appeared first on Smithsonian Insider.

Who: Wheelerodemus muhlenbergiae What: A newly discovered species of plant eating bug belonging to the family Blissidae, members of which are found worldwide. W. muhlenbergiae […]

The post Meet a new true bug: “Wheelerodemus muhlenbergiae” appeared first on Smithsonian Insider.

Tiny Anolis lizards preserved since the Miocene in amber are giving scientists a true appreciation of the meaning of community stability. Dating back some 15 […]

The post Trapped in Amber: Ancient fossils reveal remarkable stability of Caribbean lizard communities appeared first on Smithsonian Insider.