When you've always known deciduous trees to drop their leaves in winter, seeing one that hasn't can be unsettling. Here's why ...

As foliage darkens in the fall, the pigments within the plant matter break down and transform What Is an Aurora? (03:13) 5 Record-Breaking Bird Migrations (02:56) Pesto the Enormous, Viral King ...

This phenomenon, called marcescence, adds a unique dimension to the winter landscape, and gives me something to ponder while ...

Deciduous trees – trees that lose their leaves every year and their leaves change colour with each season, such as oak trees. Deforestation – when trees are cut down to clear the land for ...

Similar to a tropical rainforest, deciduous woodland is made up of four different layers. Depending how wet it is on the ground, you may find mosses, fungi, leaf litter and decaying wood.