collagen elasticity varies with temperature at which the
collagen developed. i don't know the exact reference for
this, but think it was ca. 1970s Laura May. i looked into
this because i too wanted to trap house mice and know
their ages. i gave up on that until i began following
the rat-age discussion. if anyone has done work on rodents
in large enclosures, where there is a chance to note
their time of birth (+/- 1 mo?), such data could be
a benchmark for people working with field pops.
AEM Baker, Bio Dept, CSU, Fort Collins CO 80523
