Author: Caroline Roffe
When Dr. Ryan Kelly says he can see whales in a bottle of water, he means it. At least, he can tell which whales and other species have passed through that water sample by sequencing the DNA inside. All living things shed tiny traces of DNA in their environments. Water, soil, and even air hold clues about which species have been present. Over the past decade, Kelly and his colleagues have helped bring these genetic traces … Continued