Chicken with long teeth and crocodiles and ancestors (map)

Long teeth of chicken embryos

TOM-24 February 2006, the United States rising recently, University of Wisconsin Wiregrass laboratory Mathieu · Harris found at a chicken embryo beak on the edge of a small like a tooth-like Protuberance — accurately, like the crocodile teeth. This accidental discovery shows that despite the long bird has lost this physical characteristics, but the chicken while retaining the long teeth.

The beginning of the 19th century, comparative anatomy co-founder Ian Martini · Kyrgyzstan · Russia Vladimir Roy St. · West lari in Parrot's beak on the embryo found similar teeth small Protuberance, but because he was busy and George · library Weir on the theory of evolution genetics issues of controversy, and the discovery of forgotten. 200 years after, then a graduate student rediscovered.

Responsible for directing the work of Harris of biologist John · French explained: "they did not grow in the lower jaw, but long out of the conical Sabre-like early teeth. The teeth of other animals is a crocodile. ”

Prior to this, also had the scientists try to keep chickens grow teeth. However they are mouse genetic information intervention to chicken, complete, and this way make chicken growths is a mammal of the lower jaw. While chicken body potential long teeth capacity is from the same ancestor for crocodile zulong there passed on.