The classic examples Lamarck used to explain the concept of use and disuse is the enlongated neck of the giraffe. Why not the others animal who eats the grass?

by Liya Teshome
(Ethiopia/Addis Ababa)

USE AND DISUSE

In this part of his theory, Lamarck suggests that by continually using a structure or process,that structure or process will become enlarged or more developed.conversely,any structure or process that is not used or little used will become reduced in size or less developed.

The classic example he used to explain the concept of use and disuse is the elongated neck of the giraffe. According to Lamarck,a given giraffe could,over a lifetime of straining to reach high branches,develop an elongated neck.

Read Evolution Theory.