Have you ever wondered how it is that plants avoid pollinating themselves? Walnut trees have evolved to avoid this by ...

Biologists at UC Davis have uncovered a fascinating genetic mechanism in walnut trees, allowing them to alternate between ...

Here are five of the more unusual trees you might want to spot on your travels. The national tree of Yemen is so called because of the deep red resin in its bark which appears to bleed when cut. Yet ...

The Catry Blue Blossom Cat Tree has six perches or spots for the cats to take a cozy nap. It doesn't look like a cat tree, ...

The genetics behind the alternating sexes of walnut trees has been revealed by biologists at the University of California, ...

Before flowering plants emerged, the gymnosperms, which have cone-like structures instead of flowers, dominated the plant ...