Because they are different animals
l don't know
A bird is a warmblooded animal because it's body temperature/blood temperature do not match the temperature of the environment is in. A shark is cold-blooded because it's body temperature changes with the water it's in.
An ornithopter is a device, whereas a bird is an animal
An animal can be a mammal, reptile, bird or ocean life. Animals can sometimes be domestic or even wild. Some animals can blend in with there surroundings and protect themselves from preditors.
A hen is both an animal and a bird. All birds are animals. They are all part of the kingdom animalia.
Yes, but they can easily become feral if their wings are not clipped!
A cheetah is the fastest animal on this planet. The cheetah can run up to 70 - 75mph. The domestic cat can run at 30mph.
bird
bird
Yes, a bird is an animal.
The temperature of a robin bird is 104 degrees
An Eagle is a bird and there are lots of different types of Eagle, like the Golden eagle.