1. Genetics

    The smell of fear may make it hard for dogs to track some people

    Genes and stress may change someone’s scent, confusing search dogs.

  2. Science & Society

    Some scientists ask for ban on the gene editing of babies

    Scientists and research organizations have just issued calls for a voluntary ban on editing genes that can be inherited by people.

  3. Genetics

    Explainer: What are genes?

    Genes are DNA regions that tell cells how to build proteins. But we have many more proteins than genes. And much of our DNA controls when genes turn on and off.

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    Scientist reports first gene editing of humans

    A Chinese researcher claims to have edited the DNA of human embryos. Babies from those embryos were born this month, and the news kicked off a firestorm of controversy.

  5. Plants

    Plants don’t grow well when always on high alert

    Plants make bitter-tasting chemicals to defend themselves against hungry bugs. But they pay a cost for always being on alert, scientists find.

  6. Genetics

    Gene editing creates mice with no mom

    Scientists used gene editing to make the first ever mice with two dads. But these motherless pups died soon after birth.

  7. Genetics

    Gene editing wiped out a population of mosquitoes in lab tests

    For the first time, a gene drive caused a population crash of mosquitoes. Such gene editing could drive the malaria-carrying insects to extinction.

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    The mixed-up world of hybrid animals

    When animals from related species mate, they may produce hybrid offspring. These animals can display a jumble of traits, such as colors, shapes or behaviors.

  9. Life

    A ‘ghost’ gene leaves sea mammals vulnerable to some toxic chemicals

    Manatees, dolphins and other warm-blooded marine animals can't break down some common pesticides. The newfound reason: Long ago, their genes lost the ability to do so.

  10. Genetics

    Koala genes could help scientists save these furry animals

    Scientists have examined the clues within koalas’ genetic instruction book. They are learning more about how to save these cuddly creatures.

  11. Genetics

    Toxic toads pose threat to Madagascar’s predators

    The Asian common toad, an invasive species in Madagascar, produces a chemical in its skin that’s probably toxic to most of the island’s predators.

  12. Genetics

    Scientists Say: Intron

    These are sections of DNA that are trimmed out before the DNA is copied RNA and translated into protein. But they still have important jobs to do.