Mammary glands and feathers: Comparing two skin appendages which help define novel classes during vertebrate evolution

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Mammary glands and feathers: comparing two skin appendages which help define novel classes during vertebrate evolution.

It may appear counter-intuitive to compare feathers and mammary glands. However, through this Evo-Devo analysis, we appreciate how species interact with the environment, requiring different ectodermal organs. Novel ectodermal organs help define evolutionary directions, leading to new organism classes as exemplified by feathers for Aves and mammary glands for Mammals. Here, we review their struc...

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ژورنال

عنوان ژورنال: Seminars in Cell & Developmental Biology

سال: 2007

ISSN: 1084-9521

DOI: 10.1016/j.semcdb.2007.02.005