The true mark of a pluripotent stem cell is its ability to divide and form the three germ layers— endoderm, mesoderm, and ectoderm—which are crucial for the development of the body’s tissue and organs ...

Why must they? What cells and specialized organs make such crypsis possible for one of the older evolutionary groups of animals? Chromatophores are organs that are present in the skin of many ...

A study shows why the panda was able to adapt to a diet of bamboo ... and this can be seen from its relatively short metabolic organs, which are designed to utilize protein — it feeds almost ...