How rattlesnakes got, and lost, their venom
Friday, September 16, 2016 - 08:23
in Biology & Nature
Millions of years ago, as the snake family tree grew new branches, the ancestor of modern rattlesnakes was endowed with a genetic arsenal of toxic weaponry, including genes for toxins that poison the blood, toxins that damage muscle and toxins that affect the nervous system, a research team headed by Sean B. Carroll at the […]