Leaves come in many different shapes and sizes ... Twigs are a great marker if you know what to look for. The bark is a tree's natural armor and protection from external threats.

The bark of a tree is its own protection against the weather ... as its unusual bark that strips away to reveal a completely different color underneath. In fact, in the right sunny and dry ...

The bark on many tree species is also host ... they measured the methane flux occurring at different points on tree trunks in four different regions: the Brazilian Amazon, a tropical forest ...