Watch: Scientific Breakthrough for Rare Przewalski's Horse

Birth via artificial insemination may be boon for endangered species.

Przewalski's horses are rare and endangered wild horses native to Mongolia. "They are not like our domestic horses," explains Budhan Pukazhenthi, a reproductive physiologist at SCBI. "We had to really start developing the infrastructure and a management plan to study this."

Pukazhenthi and his team spent nearly seven years on this project, first learning how to work with the wild animals to allow scientists to perform steps necessary for artificial insemination, and then determining how to create a viable pregnancy. Previous attempts to artificially inseminate mares were unsuccessful, but last year Pukazhenthi tried a different method that minimized the distance that the sperm had to travel to the uterus.

The new technique worked, making the yet-to-be-named filly the first Przewalski's

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