With the advent of genetic engineering of rodents came the need to assess fertility and germline competency, especially in chimeric rodents generated using embryonic stem cells. Traditional methods ...

Semen collection in rhinoceroses (Rhinoceros unicornis, Diceros bicornis, Ceratotherium simum) by electroejaculation with a uniquely designed probe. "Electroejaculation in rhinoceroses has ...

There may be no species closer to the black brink of extinction than the largest freshwater turtle on Earth, the Yangtze giant softshell. Only four of these critically endangered reptiles are left in ...

The Bengal tiger (Panthera tigris tigris) is critically endangered, so assisted reproductive technologies, including artificial insemination, are important conservation tools. For wild and domestic ...