For the first time, scientists said Thursday that they had bred mice with two genetic fathers, steering around biological hurdles that would otherwise prevent same-sex parents from having offspring.

Vegetative reproduction from stems, roots and leaves is common to all plants and results in an identical plant from which the cutting came; it’s a clone. As gardeners, we propagate cuttings for many ...

I love to see our plants grow in the demo gardens, but I think one of my favorite things is to get new plants without paying too much. One of the easiest ways to get or grow extra plants is by stem ...

Blood-forming stem cells are able to count and store memories of the number of times that they divide, findings which could have major implications for disease research, scientists have found.