Author: Richard Harris / Source: NPR.org Sometimes rare diseases can let scientists pioneer bold new ideas. That’s been the case with a condition that strikes fewer than 100 babies a year in the United States. These infants are born without a functioning immune system. The disease is called

Author: Tina Hesman Saey / Source: Science News for Students BALTIMORE, Md. — Some police dogs may smell fear. And that could be bad news for finding people whose genes make them more prone to stress, new data show. Trained police dogs did not recognize stressed-out people who had inherited a

Author: Tina Hesman Saey / Source: Science News ORLANDO, Fla. — Some people’s genes may stop an antiretroviral drug from protecting them against HIV, a genetics study suggests. The drug, called tenofovir, is used for preventing as well as treating an HIV infection. But success in prevention has

Author: Tina Hesman Saey / Source: Science News Evolutionary tweaks to DNA that bosses genes around may have grounded some birds. New genetic analyses show that mutations in regulatory DNA caused ratite birds to lose the ability to fly up to five separate times over their evolution, researchers

Author: Jon Cohen / Source: Science | AAAS The mighty genome editor CRISPR isn’t so powerful in lizards and snakes: Never before has it been used to edit the embryos of these reptiles. Now, researchers have come up with a workaround—by editing the immature, unfertilized eggs of brown anole