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Ask a biologist
#32
RE: Ask a biologist
(May 23, 2015 at 7:43 pm)Brian37 Wrote: Why are there nipples on men?

It has to do with early development. Initially, the embryo follows a female developmental path (it doesn't express testosterone in the first two months of development), and by then it's too late (we're stuck with mammary papilla). 
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Messages In This Thread
Ask a biologist - by nihilistcat - May 21, 2015 at 8:54 pm
RE: Ask a biologist - by Minimalist - May 21, 2015 at 8:59 pm
RE: Ask a biologist - by Pyrrho - May 21, 2015 at 9:14 pm
RE: Ask a biologist - by Polaris - June 4, 2015 at 9:49 pm
RE: Ask a biologist - by nihilistcat - June 6, 2015 at 2:30 pm
RE: Ask a biologist - by Dystopia - May 21, 2015 at 9:13 pm
RE: Ask a biologist - by ignoramus - May 21, 2015 at 9:20 pm
RE: Ask a biologist - by Pyrrho - May 21, 2015 at 9:25 pm
RE: Ask a biologist - by nihilistcat - May 22, 2015 at 5:19 pm
RE: Ask a biologist - by Pyrrho - May 22, 2015 at 5:51 pm
RE: Ask a biologist - by Aractus - June 3, 2015 at 5:13 am
RE: Ask a biologist - by Anomalocaris - June 3, 2015 at 10:09 am
RE: Ask a biologist - by Jenny A - May 22, 2015 at 12:04 am
RE: Ask a biologist - by Alex K - May 22, 2015 at 3:10 am
RE: Ask a biologist - by nihilistcat - May 22, 2015 at 6:52 pm
RE: Ask a biologist - by Longhorn - May 22, 2015 at 4:11 am
RE: Ask a biologist - by Angrboda - May 22, 2015 at 6:03 pm
RE: Ask a biologist - by Pyrrho - May 22, 2015 at 8:44 pm
RE: Ask a biologist - by nihilistcat - May 22, 2015 at 8:58 pm
RE: Ask a biologist - by The Valkyrie - June 3, 2015 at 10:54 pm
RE: Ask a biologist - by Pyrrho - May 22, 2015 at 9:03 pm
RE: Ask a biologist - by nihilistcat - May 22, 2015 at 9:07 pm
RE: Ask a biologist - by Pyrrho - May 22, 2015 at 9:12 pm
RE: Ask a biologist - by nihilistcat - May 22, 2015 at 9:38 pm
RE: Ask a biologist - by Anomalocaris - May 22, 2015 at 9:32 pm
RE: Ask a biologist - by Alex K - May 23, 2015 at 11:31 am
RE: Ask a biologist - by nihilistcat - May 23, 2015 at 4:32 pm
RE: Ask a biologist - by Alex K - May 25, 2015 at 10:42 am
RE: Ask a biologist - by Longhorn - May 25, 2015 at 10:48 am
RE: Ask a biologist - by ignoramus - May 25, 2015 at 5:35 pm
RE: Ask a biologist - by nihilistcat - May 25, 2015 at 5:18 pm
RE: Ask a biologist - by Whateverist - May 23, 2015 at 4:36 pm
RE: Ask a biologist - by Anomalocaris - May 23, 2015 at 5:28 pm
RE: Ask a biologist - by nihilistcat - June 5, 2015 at 1:00 am
RE: Ask a biologist - by Lemonvariable72 - May 23, 2015 at 4:51 pm
RE: Ask a biologist - by nihilistcat - May 23, 2015 at 6:30 pm
RE: Ask a biologist - by Lemonvariable72 - May 23, 2015 at 6:38 pm
RE: Ask a biologist - by Whateverist - May 23, 2015 at 6:28 pm
RE: Ask a biologist - by nihilistcat - May 23, 2015 at 7:15 pm
RE: Ask a biologist - by Lemonvariable72 - May 23, 2015 at 7:21 pm
RE: Ask a biologist - by Jackie - May 23, 2015 at 7:43 pm
RE: Ask a biologist - by nihilistcat - May 23, 2015 at 8:29 pm
RE: Ask a biologist - by Anomalocaris - May 23, 2015 at 9:05 pm
RE: Ask a biologist - by nihilistcat - May 23, 2015 at 9:22 pm
RE: Ask a biologist - by ignoramus - May 23, 2015 at 10:01 pm
RE: Ask a biologist - by Anomalocaris - May 23, 2015 at 10:17 pm
RE: Ask a biologist - by nihilistcat - May 23, 2015 at 10:36 pm
RE: Ask a biologist - by Lemonvariable72 - May 23, 2015 at 10:57 pm
RE: Ask a biologist - by ignoramus - May 23, 2015 at 10:54 pm
RE: Ask a biologist - by Anomalocaris - May 23, 2015 at 11:04 pm
RE: Ask a biologist - by nihilistcat - May 24, 2015 at 11:47 am
RE: Ask a biologist - by IATIA - May 24, 2015 at 12:06 pm
RE: Ask a biologist - by nihilistcat - May 24, 2015 at 2:54 pm
RE: Ask a biologist - by IATIA - May 25, 2015 at 1:19 am
RE: Ask a biologist - by nihilistcat - May 25, 2015 at 2:19 pm
RE: Ask a biologist - by Longhorn - June 3, 2015 at 6:09 am
RE: Ask a biologist - by ignoramus - June 3, 2015 at 6:26 am
RE: Ask a biologist - by Longhorn - June 3, 2015 at 6:35 am
RE: Ask a biologist - by Whateverist - June 3, 2015 at 6:43 am
RE: Ask a biologist - by Exian - June 4, 2015 at 10:02 pm
RE: Ask a biologist - by JuliaL - June 3, 2015 at 9:47 am
RE: Ask a biologist - by ignoramus - June 3, 2015 at 6:47 pm

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