Many animals enter a dormant state to deal with the cold and lack of food. For example, grizzly bears hibernate in mountain ...

Many mammals are true hibernators and remain dormant through the winter, but a lot of them stay active, at least to some degree.

But not all animals have this weakness – zebrafish ... so reactivating this dormant gene could help repair damage after a heart attack. The team says that the next step of the research is ...