Hello!

It is the evolution in other organisms due to the human interference or activities.

In ncert you will get a very popular example of melanic or industrial melanism.

In 1850 the environmental condition of Britain was very less polluting,in that environment predation of melanic moth by the birds was very high compared to the predation of grey moth,because the birds could easily detect the melanin moth in the grey background.

The grey color of moth was the adaptive feature because of camoflaging After 1930 pollution control devices were implanted.Background became greyish hence the number of grey moth increased and the melanin moth reduced this is known as reserve evolution.because grey moth showed camouflaging with  that background