Asks Elizabeth from Maryland
Both deadly and benign spore-forming bacteria's genes allow them to eke it out in extreme conditions.
Get video answers from Rob DeSalle, an evolution expert.
Neil Shubin's new book explores the intersection of developmental biology, paleontology and genetics.
A lizard family tree offers clues to the balance between reproduction and survival.
Even wasps may have the genetic blueprint for motherly love.
A microscopic image of our ancestor's thigh bone blurs the definitions of art and science.