A lawsuit filed on Tuesday argues the federal government knows a rare desert wetland wildflower is in trouble, but it isn’t ...

An average maturing tree under optimal conditions can transport up to 10,000 gallons of water only to capture about 1,000 usable gallons for the production of food and adding to its biomass.

Not every nest in trees is a bird nest! Here's what a squirrel nest looks like and how to deter squirrels from nesting in ...

All tree leaves exhibit margins—the blade-like edges of the leaves—that are either serrated or smooth. Leaf margins can be finely classified based on at least a dozen unique characteristics.