The Urban Scientist

The Urban Scientist

A hip hop maven blogs on urban ecology, evolutionary biology & diversity in the sciences

Wordless Wednesday: Research Snapshots 8 – taking measurements


Research snaphots from what's active on my desk right now. Yes, this is what has my attention these days - anogenital distances, AGD. Simple basic physical measures of anatomy of AGD can tell scientists a lot of important information about a species. In most mammaliam species AGD is a dimorphic - meaning different in size in males and females. In many rodent species the AGD gives some very important clues into the hormonal and physiological environment pups experienced in utero when mom was pregnant.

Young male pouched rat getting anogenital distance measured

Older male pouched rat getting anogenital distance measured


Young female pouched rat getting her anogenital distance measured

Older female getting her anogenital distance measured.

I'm just cataloging numbers and photos now. But some very interesting questions and hypotheses are popping up in my head. Stay tuned!

The views expressed are those of the author and are not necessarily those of Scientific American.

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