Those arguments show a really faulty grasp of comparative anatomy and evolutionary theory.
Look at the picture
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here showing the organisation of the mammary glands on mice. You will see that they have mammary glands in both the 'armpits' and the groin.
Th obvious conclusion then is that a common ancestor of all these species, i.e. bat, whale, human and mouse, had mammary glands distributed right along their body axis between and around the forelimbs and hindlimbs as the mouse does and that in the case of the bat, human and whale specific sets of mammary glands have been lost leaving each with a subset of mammary glands all of which however occupy positions represented by the mammary glands of the mouse as being more representative of the common ancestor.
So human females may well carry no longer functional sequences coding for mammamry gland development in the armpits or groin region, not because they are descended from whales or bats but because they are all descended from a common mammalian ancestor which, like the mouse, had mammary glands in all of these places.
TTFN,
WK
This message has been edited by Wounded King, 16-Jan-2006 08:08 AM