The differences between the members of aves and mammalia are as follows:
|
AVES |
|
MAMMALIA |
| 1. |
As birds fly, they have hollow bones |
1. |
Mammalian bones are dense |
| 2. |
Birds lay eggs |
2. |
Mammals give birth to young ones |
| 3. |
Birds have feathers |
3. |
Mammals have either fur or hair. |
