Justify with the help of an example where a deliberate attempt by humans has led to the extinction of a particular species.

(i) The Nileperch introduced into Lake Victoria in east Africa led eventually to the extinction of 200 species of cichlid fish in the lake.

(ii) The recent illegal introduction of the Africa catfish Clarias gariepinus for aqua culture purposes, is posing threat to the indigenous catfish in our rivers.

Difficulty Level:

  • 89%
  • 12%