Studies: Captive Elephant Breeding Hard
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Elephants in zoos are living as long as those in the wild, but their population in captivity is dwindling because it is so difficult to breed them, according to studies released Friday.
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NEW YORK  - Deep-freezing embryos has been  routine for some time, to give infertile couples reproduction  choices in various situations, but freezing unfertilized eggs  has proven difficult.
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Calgary - The days-old baby elephant rejected by its mother at the Calgary Zoo is in critical condition. The unnamed infant is being cared for by zookeepers, because her mother won&#39;t let her feed.
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San Francisco officials pondered  on Thursday whether to stop keeping elephants in the city's zoo  as activists pushed for a ban amid concerns about their  conditions in captivity.
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An international effort to halt the illegal killing of elephants for their ivory tusks has all but collapsed in most of Africa, leaving officials and advocates alarmed about the survival of the species. A study being reported Tuesday estimates that as many as 23,000 animals were slaughtered last...
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Scientists say a DNA map of Africa&#39;s elephant herds will help combat the illegal trade in ivory. The map is a genetic profile of elephant groupings across the continent, from the dense forests of western and central Africa to the vast eastern savanna.
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Scientists led by Samuel Wasser of the University of Washington collected manure samples in areas inhabited by African elephants. The geneticists isolated DNA from the manure and transferred it into the database.
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The first Sumatran rhinoceros born in captivity in more than a century will be moved from the Los Angeles Zoo to Indonesia this week to take part in a breeding program for the critically endangered species, officials said.
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CALGARY -- A newborn elephant that received a special blood transfusion after it was rejected by its mother appears to be getting better, say officials at the Calgary Zoo.
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Lions are seen in cages at a breeding facility in South Africa during part of an investigation by the International Fund For Animal Welfare into the breeding of the animals for canned hunts.
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The genetic blueprint of a parasite that causes disfiguring elephantiasis has been unravelled.
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CHICAGO Elephants and employees at Lincoln Park Zoo are being tested for tuberculosis after an elephant died over the weekend. Zoo officials say the 35-year-old female African elephant that collapsed and died Saturday mostly likely had tuberculosis.
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The world's first Indian rhino baby to be conceived by artificial insemination is due during Christmas week at the Cincinnati Zoo. "I think it's a remarkable achievement, an incredibly important success," said Dr. Evan Blumer, a board member of the International Rhino Foundation. "The next step is where it becomes really important. The first is to be successful, the second is to be reliable and repeatable."
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A genetic test that can determine the origin of ivory could help combat the illegal trade in elephant tusks and their products.
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A lonely wild male elephant raided a female elephant stable at a circus in eastern India and wooed one of its residents to elope with him, a newspaper report said on Thursday.
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Low sperm counts and other  reproductive problems are preventing pregnancy among Malaysia&#39;s  endangered rhinos, a worrying trend that wildlife experts say  could hasten its extinction.
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South Africa's Kruger National Park elephant population has nearly doubled in recent years, causing heavy habitat destruction and invasion of adjacent farms. Now conservation authorities are considering a plan to kill perhaps thousands elephants to bring the problem under control.