As we have posted previously, the Glor lab has been breeding anoles to assess the degree of reproductive isolation between A. distichus-clade lineages. Most eggs we collect fall into two easily separated categories: white, calcified, viable eggs; and yellow, uncalcified, inviable eggs. On occasion we get a third type: white, seemingly viable, yet uncalcified eggs. These represent only about 1% of the eggs in our current experiment. We always incubate these, in the hopes that they will develop, but typically they mold early in incubation and, upon dissection, show no signs of fertilization or development. The egg above is our first exception which, when incubated for about 3 weeks, was clearly developing (it has, sadly, since died).
So, AA community, has anyone else seen anything like this? I would very much like to hear your thoughts, interpretations and comments.