Contents

1. Salient Features of Reptilia, Aves, Mammalia

1. Reptilia

2. Aves    

3. Mammalia

2. General Topics

1. Poisonous and Non-poisonous Snakes    

2. Desert Adaptations in Reptiles  

3. Beak and Feet Modifications in Birds  

4. Migration in Birds  

5. Aerial Adaptations in Birds     

6. Egg Laying Mammals  

7. Aquatic Mammals     

3. Study of Scoliodon

1. Introduction  

2. Systematic Position 

3. External Characters 

4. Digestive System    

5. Respiratory System  

6. Blood Vascular System

7. Nervous System and Sense Organs 

8. Urinogenital Organs