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No, birds are not mammals. Modern systematics (phylogenetic systematics or cladistics) define all groups by shared derived characters - synapomorphies-. Thus, mammals as a crown group (that is, considering only all the living species and th...
http://answers.yahoo.com/question/index?qid=10060411176...
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Amphibians Birds Butterflies Fishes ... Insects Spiders Mammals Seashells ... News from the world of birds, bugs, and beasts...
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Birds are warm blooded, but that alone is not enough to make them mammals. They would need to have hair or fur and nurse their young. You are correct that mammals are named that because they nurse their young from mammary glands. All mammal...
http://answers.yahoo.com/question/index?qid=20080129162...
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The size range in birds is narrower than what we see in mammals.The smallest birds weigh around 2.2 grams, maybe 2.1, 2.3. That'san adult body mass, the humming bird, for example, a little tinyhumming bird found in Central America.
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www.csupomona.edu/~dfhoyt/classes/zoo138/CHAR_BIRD.HTML
www.csupomona.edu/~dfhoyt/classes/zoo138/CHAR_BIRD.HTML
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Altricial - refers to mammals born in a fairly undeveloped state; the young require close parental care for a period of time. Rabbits are born in an altricial ... Internal fertilization - 1. broadly, the reproductive condition in animals, such as birds and mammals, when the egg is fertilized within the female's body.
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imnh.isu.edu/digitalatlas/bio/glsry.htm
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InfoNatura: Animals and Ecosystems of Latin America: Conservation information for more than 5500 species in 44 countries. ... Use Guidelines & Citation ... Welcome to InfoNatura, a conservation and educational resource on the animals, and ecosystems of Latin America and the Caribbean. You can use InfoNatura to learn about...
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www.natureserve.org/infonatura/
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People, horses, and most other mammals are not known to develop infectious-level viremias very often, and thus are probably "dead-end" or incidental-hosts. ... West Nile virus has been detected in dead birds of at least 326 species. Although birds, particularly crows and jays, infected with WN virus can die or become ill,
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www.cdc.gov/ncidod/dvbid/westnile/birds&mammals.htm
www.cdc.gov/ncidod/dvbid/westnile/birds&mammals.htm
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Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a Find out more about why this message is appearing, ... Stochasticity in time series explains concave responses of per capita growth rate to population size.
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www.sciencemag.org/cgi/content/full/311/5764/1100c
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"Birds are not mammals because they do not produce milk or have "fur"" The basic definition of a Mammal according to Wikipedia is: "...characterized by the presence of mammary glands, which in females produce milk f...
http://askville.amazon.com/birds-mammals/AnswerViewer.d...
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