When it Comes to Limb Development, Marsupials Have a Leg Up

PHOTOMICROGRAPH OF MOUSE BLASTOCYST WITH INNER CELL MASS VISIBLE AT 6 O'CLOCK. EMBRYO MOUSE BLASTOCYST INNER CELL MASS

We have probably all seen these creatures somewhere. After all, the image of a pink undeveloped marsupial embryo living outside its mother’s womb is a staple of nature shows and biology films.  The fact that these mammals do the majority of their developing outside of the womb is enough to set them apart, but new research out of Duke University shows that it is more than just where they develop that is different; their timeline of development is different (1). Continue reading “When it Comes to Limb Development, Marsupials Have a Leg Up”