On Tue, Nov 18, 2008 at 10:25 PM, bob_brigante <[EMAIL PROTECTED]> wrote: > http://tinyurl.com/5zm6ox >
By now we're getting use to the surprise that humans aren't so very different from each other genetically nor are they all that much different from other creatures. Single genes or even genetic switches give creatures who seem very remotely different from us the defining feature which separates us. I was fascinated by a PBS program on attempts to turn a chicken into a dinosaur by turning on certain proteins during development. It turns out that the chicken and many fowl pass through many vestigial dinosaur states while developing. Things are simpler than we imagined they'd be.
