Previous efforts to produce teeth in chickens had relied on introducing genetic information from mice, resulting in chickens growing mammalian molars. But a chicken's underlying ability to grow teeth derives from a common ancestor with alligators--archosaurs--that is more recent than the one linking birds and mammals.uring that time, the same two tissues from which teeth develop in mammals come together in the jaw of the mutant embryo--and this leads to nascent teeth, a structure birds have lacked for at least 70 million years. They don't make a molar, explains development biologist John Fallon, who oversaw Harris's work.
The name Journey is of Latin origin. The meaning of Journey is journey. Journey is generally used as a girl's name. It consists of 7 letters and 2 syllables and is pronounced Jour-ney.
Synonyms: travel, go, move, walk More Synonyms of journey. usage note: Do not confuse journey, voyage, trip, and excursion. A journey is the process of travelling from one place to another by land, air, or sea. ...a journey of over 2,000 miles. If you journey to a place, you travel there. This is a literary use. The nights became colder as they journeyed north. A voyage is a very long journey from one place to another, usually by sea or through space. ...the voyage to the moon in 1972. A trip is the process of travelling from one place to another, staying there, usually for a short time, and coming back again.