What fed young before Mammary glands evolved?

Subject: What fed young before Mammary glands evolved?

Date: Thu Oct 4 08:20:08 2001
Posted by Steve
Grade level: grad (science) School: No school entered.
City: No city entered. State/Province: No state entered. Country: UK
Area of science: Anatomy
ID: 1002198008.An

Message:


I understand that mammary glands evolved from sweat glands. If this is the case,
what did the young drink before they did? More specifically, which series of
steps were involved int he evolution of the mammary glands?

Re: What fed young before Mammary glands evolved?

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