Watch the oak tree change through the seasons. Acorns falling from the oak tree are often eaten by squirrels, or buried to eat over the winter. Many insects and birds make the oak tree their home ...

Although most biologists would argue that viruses are not alive, some argue that viruses should be included in the tree of life. All organisms, they contend, should be divided into ribosome ...

The finch has a clutch size of two to four eggs and likes to nest in the Scalesia peduculata, a large tree. LIFE CYCLE: Finches can live 15 to 20 years, but the more common lifespan is probably five ...

Oak trees have lots of visitors ... An animation illustrating the different stages in plant development. The life cycle of a dandelion. videoThe life cycle of a dandelion A look at the life ...