1=Both eat similar food. 2=both are vertebrates, 3=both have sexual method of reproducton.4=both are warmblooded. 5=both have all five special senses,like smell, sight, taste, touch.6= both have pineal gland.7=both have four pairs of limbs.
8=both are heterosexual.9=both have their skin covered.10=both live on land.
a bird has feathes and a beak and a mammal gives milk to its birth
Birds and mammals are closely related. There are many similarities - both are vertebrates (have backbones), both are endothermic (warm-blooded) and both breathe oxygen from the air.
Thenoticeabledifference is that bird erythrocytes have organelles and a nuclei, which most mammals erythrocytes don't have.
They both end in bird
To compare these two animals, I would rather say that they are very different from each other. However, there are some similarities between the two. The bird has wing unlike the cat. The cat has four feet but the bird has only two. They are quite different between each other, because the cat moves by their feet for running. While the bird moves by using their wing to fly up in the sky. Most of the birds are found in the forest. But there are also some people who keep some bird species in their house. People are more likely to keep the cat in their house more than the bird. The sizes of the two animals are not quite much different. The bird gives birth by lay eggs, but the cat doesnโt. They both live on land, neither of them live in water. In addition, neither of them is good in swimming compare to the fish.
Both warm blooded both live in many environments both have four chambered hearts both are omnivores both are in the phylum chordate both live on land
A bird lays eggs and a mammal doesn't
Bird. The rest are mammals and four legged species.
The bald eagle, a bird, has a four-chambered heart, as do all other birds and mammals.
The connecting link between birds(Class Aves) and Mammals(Class Mammalia) is Archeopteryx
That the birds and seals probably have the same ancestors.
That the birds and seals probably have the same ancestors.