Planarian flatworms regenerate their heads and tails after amputation. It turns out that they use Wnt–β-catenin signalling to determine where the head and the tail should form. Figure 1 ...
Planarians are a kind of flatworm capable of regenerating almost any part of their body—from head to tail—and doing it quickly. A planarian that loses its head can regrow a new one in a week, and an ...
Regeneration of tissues and organs is one of the great unsolved mysteries of biology. Whitehead Member Peter W. Reddien works to shed light on that mystery through research on the planarian Schmidtea ...