A New Cloned Horse Offers Hope for Endangered Species
The technique may finally be emerging as a way to preserve species at risk of extinction. ..
The technique may finally be emerging as a way to preserve species at risk of extinction. ..
The death of a jogger in northern Italy has turned the reintroduction of bears into a fraught political issue. ..
The animals evolved into ultra-resilient, disease-free predators while isolated on Auckland Island. Now people want to breed them for organ transplants. ..
In California, the bodies of four furry swimmers tested positive for a strain of toxoplasmosis first seen in mountain lions. ..
Wild hogs destroy crops, uproot landscapes, and spread diseases—and not much is stopping them. ..
One million species are at risk of extinction, but a handful of charismatic creatures get all the hype. A new conservation strategy has a different focus. ..
The avian flu has killed millions of chickens, decimated wild birds—and moved into mammals. Now the poultry industry needs new measures to stop its spread. ..
Stretches of DNA that lock inherited traits together often accumulate harmful mutations. But they also hold genetic benefits for species. ..
Audacious plans to resurrect the long-extinct bird could be lucrative. But the moonshot raises thorny philosophical questions. ..
Lab animals have long borne the brunt of drug safety trials. A new law allows drugmakers to use miniature tissue models, or organs-on-chips, instead. ..