Darwin

We associate Darwin with the theory of evolution.

Of course Darwin, like many of his contemporaries, wished to be seen as following the Newtonian method.

Darwin studied the animals and birds different from those he knew in England.

Darwin wrote "The Origin of Species".

We associate the name of Darwin with The Origin of Species.

We associate the name of Darwin with the theory of evolution.

Darwin developed the evolutionary theory.

Some old lady told Tom that he looked like Charles Darwin.

Darwin changed the world.

Darwin changed everything.

One darwin (d) equals the rate of evolution that would produce a change in size by a factor of approximately 2.7 in one million years.

The rate of evolutionary change in a species' wing or leg or beak (remember Darwin's finches mentioned in Chapter 1?) is assessed in degree-of-physical-change units called darwins.

For instance, gradual change is relatively common in vertebrates (about .08 darwins), though some rapidly evolving vertebrates lineages show rates as high as 10 darwins, over short periods.