Body part regeneration appears to be a whole-body affair

A mouse injured on one leg experiences an "awakening" of stem cells in the other leg as if the cells are preparing to heal an injury. Something similar happens in axolotls, which are masters at limb regeneration. Heart injuries ...

Immortal worms defy aging

Researchers from The University of Nottingham have demonstrated how a species of flatworm overcomes the ageing process to be potentially immortal.