EVS Give geographical reasons

1. Platypus and some species of anteaters are exceptions to the characteristics of mammals.
2. Though they lay eggs, they suckle their young ones.
3. Therefore, they are considered mammals.

1. In the process of survival by adapting to environmental changes, certain physical changes occur in some animals of a species.
2. These internal changes become inherited characteristics in the following generations.
3. Thus a new species with characteristics different from the original is created.

1. According to Darwin, the species that cannot adapt to environmental changes become extinct in the process of evolution.
2. Some sudden natural disaster or environmental change is believed to be responsible for the extinction of enormous dinosaurs.