Question

Justify wirh 2 examples where deliberate attempts by humans have led to extintion of species on earth

Answer 1

Humans try to create the environment according to their well wish without thinking of the organisms. Introduction or elimination of any species or organism may leads to some serious evolutionary change which can be positive or negative. Positive result may enhance the animal’s survival rate that is reproducible, while negative result may result in extinction of native species.

For example:

1. Passenger pigeons and the Stellar’s sea cow are examples of species led to extinction due to over exploitation by humans.

2. Introduction of nile perch in lake Victoria causing extinction of more than 200 cichlid fish.