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Only mammals have mammary glands. These are the means by which the female nurtures her young on mothers' milk.
Mammals are also the only vertebrates with fur or hair.
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∙ 12y ago
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Birds are the only thing that has?
Birds are the only things that have feathers and hollow bones.
What do birds have that no other animals have?
All birds have feathers and birds are the only animals that do!
What are the only mammals with wings?
No, insects and bats have wings and neither of them are birds.
Your friends went to the beach at noon They saw black and white birds write 3 observations and 3 inferences?
Three observations include:Birds exist, as do the beach and the time of noonBlack birds existWhite birds existBlack birds can be seen at noonWhite birds can be seen at noonBlack birds can be seen on the beachWhite birds can be seen on the beachBlack and white birds can be seen at the same timeInferences can include:There are only black birds and white birdsBirds can only be seen at the beachBirds can only be seen at noonBlack birds cannot be seen without white birds, and vice versaAny black or white creature on the beach at noon is a bird
What birds are herbivores?
I don't know but I know some birds eat seeds and berries.. this is not an answer to Rather or not birds species eat only plant material , this only means that some birds are omnivorous (eat both plant-material and meat/insects) like us!
Why only birds fly?
It is not only birds that fly. Bats fly and they are not birds.
What are the only birds with penises?
Swans are the only birds that have penises.
Are birds the only mammals with feathers?
No. Birds are not mammals.
Are birds the only ones to live in trees?
Birds are not the only animals who live in trees.
Birds are the only thing that has?
Birds are the only things that have feathers and hollow bones.
Who studies just birds?
Ornithologist studies only birds. Ornithology is the study of birds.
What do birds have that no other animals have?
All birds have feathers and birds are the only animals that do!
Do birds have ravies?
Not all birds <><><> If you meant Rabies, only mammals can get rabies. Birds are not mammals.
What birds live on island?
I only know one but a the dodo birds did.
Does Kangaroos have feathers?
No. Only birds have feathers. Kangaroos are mammals, not birds.
Do birds have 9 lives?
no birds only have 3 lives to live
Where can one expect to find birds like the ones from Angry Birds?
Only in the game angry birds
