Researchers uncover key clues in the mystery of limb regeneration

Why do some salamanders regenerate limbs faster than others? A team of biologists has identified genetic factors that may dictate the rate at which limbs and organs re-grow in these incredible amphibians, shedding much-needed light on one of the most remarkable physiological feats in the animal kingdom. » 7/03/13 2:00pm 7/03/13 2:00pm

And now, a chicken grown in a Petri dish

A fertilized, incubated chicken egg takes about 21 days to hatch; and while most of us have seen what chicks look like at either end of the developmental spectrum (either sunny-side-up in a frying pan or newly hatched in a nature documentary), the fact that egg shells aren't see-through means that not many people have… » 1/12/12 9:15am 1/12/12 9:15am