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First mouse with two male parents to reach adulthood

A team of stem cell scientists have successfully used embryonic stem cell engineering to create a bi-paternal mouse -- a mouse with two male parents -- that lived until adulthood. Their results describe how targeting a particular set of genes involved in reproduction allowed the researchers to overcome previously insurmountable...

A mite-y use of electricity

Mites who hitchhike on the beaks of hummingbirds use a surprising method to help them on their journey: electricity. These hummingbird flower mites feed on nectar and live within specific flowers for their species. When it is time to seek out a new flower, they hitch a ride via hummingbirds,...