Scientists Map 700,000-Year-Old Horse Genome

Scientists have mapped the genetic code of a horse about 700,000 years old, making it the oldest mapped genome of any animal by 10 times.

The scientists used a tiny fossil found in the Canadian Yukon, and while most of the fossil was contaminated with modern bacteria, they were still able to get a good genetic picture of the ancient horse. Scientists said that for every 200 DNA molecules extracted from the fossil, only one belonged to the horse.

While the findings add to what is already …

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