Are Birds Mammals?

Answer

Birds (class Aves) are bipedal, endothermic (warm-blooded), vertebrate animals that lay eggs. Birds are not mammals.
Q&A Related to "Are Birds Mammals"
Birds and mammals both evolved from reptiles, although they each evolved from a different type of reptile. Mammals first appeared about 225 million years ago and underwent a dramatic
http://www.ehow.com/info_8660834_differences-betwe...
They are warmblooded animals. Both are vertebrates and so the bone structures are broadly similar. Birds are more closely related to Reptiles than to mammals.
http://wiki.answers.com/Q/How_are_bird_and_mammals...
The main defining characteristic of mammals is that they suckle their young on milk -
http://www.chacha.com/question/why-is-a-platypus-a...
Birds evolved from dinosaurs.....mammals split off from from common ancestors of dinosaurs all the way back in the carbonifreous period. It separated and the mammal side went on to
http://answers.yahoo.com/question/index?qid=200905...
1 Additional Answer
Ask.com Answer for: are birds mammals
Birds belong to the Class Aves.
Birds are vertebrates with feathers, modified for flight and for active metabolism. Birds are a monophyletic lineage, evolved once from a common ancestor, and all birds are related through that common origin.
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com