| Aquatic adaptations | Terrestrial adaptations |
| 1. Aquatic habitats include rivers, ponds, lakes, streams etc. | Terrestrial habitats include graslands, mountains, deserts etc. |
| 2. Aquatic animals generally use oxygen dissolved in water. | These use gaseous oxygen. |
| 3. Respiration takes place by gills. | Respiration takes place by lungs. |
| 4. Scales are found on the skin | Many adaptations takes place on skin. |
| 5. Air sacs are present. | Air sacs may or may not be present. |
| 6. Body is generally streamlined. | Body is of different shapes. |
