A new study from the Gibbs Lab suggests that while one rattlesnake may routinely feast on lizard meat, its seemingly identical neighbor snake might strike and strike and never kill its would-be reptilian prey. The first-of-its-kind research reveals significant venom variation within populations of Florida pygmy rattlesnakes, showing that effectiveness against one type of prey differs widely among individuals and opening up questions about why this variation exists.

Read more about this on the Ohio State News website.