Biological diversity - or biodiversity - is the term given to the variety of life on Earth and the natural patterns it forms. The biodiversity we see today is the fruit of billions of years of evolution, shaped by natural  processes and, increasingly, by the influence of humans. It forms the web of life of which we are an integral part and upon which we so fully depend.

Source: Convention on Biological Diversity

Useful links

Morgan Arboretum

Birding Montreal

Network of large parks

Nature Conservancy