This presentation is by Jason de Nys of the Australian International School in Hong Kong. Check out his SlideShare profile here:

D2 Species and Speciation

What is a species? Daniel Dennet, via Mark Ridley’s Evolution

Speciation mechanisms, from the LifeWire

Founder events lead to allopatric speciation, from the LifeWire

Allopatric speciation, from McGraw Hill

Speciation animation, from ZeroBio

“But we can’t see evolution happening, so how do we know it’s true?”

Because we do see it happening, all the time. Here is a recent example of a new species of salamanders evolving in California, from PBS: