Tuesday, June 16, 2009
ten great inventions of evolution
A new book outlines the ten great inventions of evolution... See summary at the scientist.com.
adaptive immunity in lamprey
"The adaptive immune system, which can recognize, attack, and remember potentially harmful microbes, may have appeared on the evolutionary scene millions of years earlier than scientists thought. The immune system of the sea lamprey, a primitive, jawless fish, contains two cell types that recognize and respond to characteristic molecules associated with invading pathogens[...]" see article at the Scientist.com.