The patient: A 34-year-old man in Mexico The symptoms: Within seconds of drinking a “smoky” alcoholic beverage at a bar, the man felt an intense pain in his stomach. What happened next: The man was… [+4647 chars]Read More
Chickens sprouted dinolike feathers when scientists messed with the Sonic Hedgehog gene Livesciencecom
Scientists uncovered a key genetic pathway in the origin of feathers, but they found that evolution is stubborn in turning back the clock.
