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Elephant in Biological News

Scientists find elephant memories may hold key to survival

A recent study by the Wildlife Conservation Society and the Zoological Society of London (ZSL) suggests that old female elephantsand perhaps their memories of distant, life-sustaining sources of food and watermay be the key to survival during the worst of times. In particular, experienced eleph...

Social standing influences elephant movement

Berkeley -- When resources are scarce, who you know and where you're positioned on the social totem pole affects how far you'll go to search for food. At least that's the case with African elephants, according to a study led by ecologists at the University of California, Berkeley, who collaborated...

Widespread elephant slaughter discovered in Chad

A team led by a conservationist from the Bronx Zoo-based Wildlife Conservation Society, working with the Chadian government and the European Union project CURESS near Chad's Zakouma National Park, has discovered 100 slaughtered elephants, most of them missing only their tusks -- a sure sign that po...

An elephant tail

Use of the amino acid supplement L-arginine following a heart attack does not improve certain cardiac functions and measurements and may be associated with an increased risk of death, according to a study in the January 4 issue of JAMA. L-arginine is a widely available dietary supplement and is p...

Vietnam war technology could aid elephant conservation

Seismic sensors developed to track enemy troop movements during the Vietnam war could help ecologists monitor and conserve elephant populations, according to new research published in the British Ecological Society's Journal of Applied Ecology. Dr Jason Wood and colleagues from Stanford Universit...

Key to elephant conservation is 'in the sauce'

What do hot sauce aficionados and African elephants have in common? They both feel the burn of chilli peppers, the key ingredient for resolving human-elephant conflicts in Africa while raising money for farmers and conservation. Supported by the Wildlife Conservation Society (WCS) and other group...

Scientists journey to southern Africa to unravel the secret world of elephant communication

It's a cloudless July afternoon in Etosha National Park in northern Namibia, and ecologist Caitlin O'Connell-Rodwell is scanning the horizon for elephants. "It's so fantastic here," she says. "We're constantly seeing elephants, rhinos, zebras, ostriches--it's the Garden of Eden." A research asso...

Seals quickly respond to gain and loss of habitat under climate change

... Southern elephant seals responded rapidly to climate and habitat cha... retreated in the Holocene period 8,000 years ago, elephant seals, Mirounga leonina , adopted the emergent ha...d. They analysed data from ancient DNA to show how elephant seal populations responded when new breeding habit...

New research shows dinosaurs may have been smaller than we thought

...ard and his colleagues realized there was an error when they used the equation to determine the weight of living animals such as a hippopotamus and an elephant and discovered that the equation greatly overestimated the weight of these animals. The researchers developed a new equation for calculating dinosa...

Elephant-size loopholes sustain Thai ivory trade

... which oversees a global monitoring programme, the elephant Trade Information System (ETIS), for the Conventio...to the ongoing detriment of both African and Asian elephant populations," said Milliken. "Since 2004, the T...so uncovered reports of traders buying wild-caught elephant calves for use in Bangkok as "beggars" on the stre...

The coming of biofuels: Study shows reducing gasoline emissions will benefit human health

...st challenges faced by McKone and Lobscheid was the uncertainty factor in quantity, quality and relevance of their input data. "Uncertainty was the elephant in the room for us," McKone said. "For an LCIA there are two types of uncertainties, those due to variability in measurements and models, and those du...

Diet secrets of 'the Royals'

...pril 13, 2009 Two weeks after the rains begin, an elephant family named "the Royals" usually switches to a gr...astasia and Cleopatra three daughters of a mother elephant named Queen Elizabeth, who died of old age the fir...ng enough for elephants to grab with their trunks, elephant tail hair shows a ratio of carbon isotopes differ...

Elephant shark genome sequence leads to discovery of color perception in deep-sea fish

... The elephant shark, a primitive deep-sea fish that belongs to t... unexpected that a 'primitive' vertebrate like the elephant shark had the potential for color vision like huma... London (UCL). The research team found that the elephant shark had three cone pigments for color vision and...

'Freaks' help scientist unravel nature and nurture

...ses how people have viewed "freaks" over time. P.T. Barnum extracted money from the Victorian public by parading his "specimens" -- Tom Thumb, The elephant Man, the Bearded Lady, the Siamese Twins -- at fairs and circuses. In Elizabethan England during the 16th and 17th centuries, deformed children were a...

Jumbo-sized discovery made in Malaysia

...g in Southeast Asia. The WCS/DWNP team counted elephant dung piles to estimate population sizea scientific...t their Asian range. Efforts to save the Asian elephant have come from various levels of government and th...e U.S. Fish and Wildlife Service through its Asian elephant Conservation Fund has invested over $9 million acr...

A happy new year for penguins

... WCS has been active in Patagonia since the 1960s, conducting studies for the conservation of southern right whales, Magellanic penguins, southern elephant seals, and other unique wildlife. WCS manages some 740,000 acres of wilderness on the Chilean side of Tierra del Fuego, part of a major donation of la...

Missing: 2,000 elephants

...ry poachers using automatic weapons have decimated elephant populations particularly when herds venture seaso...S is optimistic that it can increase on-the-ground elephant conservation work in and around Zakouma to protect... in Zakouma. Until this recent spate in poaching, elephant numbers have rebounded from an estimated 1,100 in ...

UBC researcher reveals humpback whales' dining habits -- and costs

...t animals on earth feasts on the smallest of prey and at what cost. Some large marine mammals are known for their extraordinarily long dive times. elephant seals, for example, can stay underwater for an hour at a time by lowering their heartbeat and storing large amounts of oxygen in their muscles. "We...

Researchers document world's mammals in crisis

...extinct in the wild in 1996 to critically endangered this year after successful reintroductions started in Mongolia in the early 1990s. The African elephant ( Loxodonta africana ) moved from vulnerable to near threatened, although its status varies considerably across its range. The move reflects the recen...

Long-term study shows effect of climate change on animal diversity

... ANN ARBOR, Mich.---Two species of giraffe, several rhinos and five elephant relatives, along with multitudes of rodents, bush pigs, horses, antelope and apes, once inhabited what is now northern Pakistan. But when climate s...

Southern Ocean seals dive deep for climate data

... elephant seals are helping scientists overcome a critical blind-spot in their abilit...ritish scientists in the Proceedings of the National Academy of Sciences, elephant seals fitted with special oceanographic sensors are providing a 30-fold inc...

Ivory poaching at critical levels: Elephants on path to extinction by 2020?

...o be unaware of the giant mammals' plight. The elephant death rate from poaching throughout Africa is abou...bered more than 1 million. Today the total African elephant population is less than 470,000. "If the trend...y has developed DNA tools that can determine which elephant population ivory came from. That is important beca...

Predicting the distribution of creatures great and small

...For instance, most species are small, but the largest members of a taxonomic group -- such as the great white shark, the Komodo dragon, or the African elephant are often thousands or millions of times bigger than the typical species. Now for the first time two SFI researchers explain these patterns within an...

Leatherback turtles' newly discovered migration route may be roadmap to salvation

...of the Tagging of Pacific Predators (TOPP) program, which has tagged other animals including the white shark, bluefin tuna, black-footed albatross and elephant seal. TOPP is part of the Census of Marine Life, a global network of researchers in more than 80 nations engaged in a 10-year scientific initiative to...

Multithreaded supercomputer seeks software for data-intensive computing

...the memory again for its next calculation, like an elephant dipping its trunk into a bag of peanuts and eating...ly access the much larger memory pool. But like an elephant with many trunks, each processor has multiple thre...or another trip to the memory bank. A many-trunked elephant would have a distinct speed advantage plowing thro...

Stanford study: Bioenergy potential of reviving abandoned agricultural land

... three broad categories of crops that have potential for bioenergy: food crops, local native plants and special bioenergy crops such as switchgrass or elephant grass, both of which are hardy enough to grow well on marginal agricultural land. "These abandoned agricultural lands are distributed throughout th...

Woolly-mammoth gene study changes extinction theory

... from studies of the fossil record. The scientists analyzed the genes in hair obtained from individual woolly mammoths -- an extinct species of elephant adapted to living in the cold environment of the northern hemisphere. The bodies of these mammoths were found throughout a wide swathe of northern Si...

Building on pyramids of trash

...nd award-winning works of art have been made from the most outlandish of materials from Chris Ofili's depiction of the Holy Virgin Mary encrusted with elephant dung and Damien Hirst's pickled tiger shark representing life and death to the unmade bed of Tracey Emin and the unspeakable bodily fluids of avant ga...

Scripps Oceanography Research pegs ID of red tide killer

...cteria that are about one micron in size and cant swim. Its somewhat shocking to think of something like three chipmunks attaching themselves to an elephant and taking it down, said Franks. While the RCA clusters role in the marine ecosystem is not known, Azam, a distinguished professor of marine microb...

Woody and aquatic plants pose greatest invasive threat to China

...e some of the worlds most pernicious invaders, could be poised for spread in the future. The authors note that 20 familiar plant species, including elephant grass (Pennisetum purpureum), native to Africa, and pampas grass (Cortaderia selloana), native to South America, are common invasive species in the Un...

Robot fetches objects with just a point and a click

...to the user, another person or a selected location such as a table. El-E, named for her ability to elevate her arm and for the arm's resemblance to an elephant trunk, can grasp and deliver several types of household items including towels, pill bottles and telephones from floors or tables. To ensure that E...

Destruction of Sumatra forests driving global climate change and species extinction

...over the last 25 years and in recent years has suffered Indonesia's fastest deforestation rates. In the same period there was an 84 percent decline in elephant populations, down to only 210 individuals, while tiger populations are estimated to have declined by 70 percent to perhaps just 192 individuals. WW...

Science, not romance, controls mating at Smithsonian's National Zoo

...one of their elephants have both undergone artificial insemination procedures with sperm from males at different facilities. The Zoos first successful elephant birth from artificial insemination occurred in 2001 when Shanthi was artificially inseminated using new catheter and ultrasound techniques developed b...

Elephant engineers

...nimals by reducing their habitat and out-competing them for food. Biodiversity, the researcher says, may well be greatest in the middle ranges of elephant abundance. ...

St. Jude defines eye cancer gene's role in retinal development

...coordination is that retinal thickness be the same, irrespective of eye size. For example, the mouse eye is about 5,000 times smaller than that of the elephant eye, but the retinal thickness in these two species is comparable. Working with mice, the researchers found that a gene called N-myc coordinates th...

Marine scientists warn human safety, prosperity depend on better ocean observing system

...e areas of the oceans the animals inhabit. The 22 species tagged include elephant seals, white sharks, leatherback turtles, squid, albatross and sooty shearw...aptured by the tags are transmitted via satellite as the creatures travel. elephant seals, for example, spend 10 months at sea and dive up to 1.5 km below the ...

Human safety, prosperity depend on better ocean observing system: Scientists

...e areas of the oceans the animals inhabit. The 22 species tagged include elephant seals, white sharks, leatherback turtles, squid, albatross and sooty shearw...aptured by the tags are transmitted via satellite as the creatures travel. elephant seals, for example, spend 10 months at sea and dive up to 1.5 km below the ...

Ancient whale fall from California's Ao Nuevo Island one of youngest, most complete known

... Berkeley -- A fossilized whale skeleton excavated 20 years ago amid the stench and noise of a seabird and elephant seal rookery on California's A o Nuevo Island turns out to be the youngest example on the Pacific coast of a fossil whale fall and the first in Califo...

Ancient whale fall from California's Año Nuevo Island one of youngest, most complete known

... Berkeley -- A fossilized whale skeleton excavated 20 years ago amid the stench and noise of a seabird and elephant seal rookery on California's A o Nuevo Island turns out to be the youngest example on the Pacific coast of a fossil whale fall and the first in Califo...

Male elephants get 'photo IDs' from scientists

...h. Our new method allows specific tracking of male elephant population dynamics, so it is a powerful conservat...itional survey techniques, which can gauge overall elephant densities and sex ratios at population levels, but...s monitor poaching rates over the long term. Also, elephant carcasses can be compared with archival photos to ...
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