“ a couple links found today a little more detail on Paleocene–Eocene Thermal Maximum (see wikipedia summary)... (read full comment) ” 

Posted on April 26, 2010 at 9:54 PM EDT

“ stem cells in the blood I wonder if the stem cells in the younger animal were traveling to the older animal, and account for the blood-cell ratios. (read full comment) ” 

Posted on February 3, 2010 at 8:49 PM EST