Some amphibians — such as salamanders — are famous for their superhero - like ability to regenerate heart, brain, spinal cord, tail and
even whole limb tissue throughout their life.
Although organ and spinal cord regeneration are clinically important and worthy of intense research investment,
regrowing whole limbs provides a flagship example of perfect regeneration in the salamander.
We may be some way off from the dream of
replacing whole limbs in humans but recent progress confirms that by deepening our understanding of stem cell activation, we can directly unlock more regeneration in mammals than normally possible.
Bungie have been working on new animation for the Brutes, judging by the video the Brutes will now be able to
rip whole limbs off of Marines, throw vehicles at its enemies and crush them with any object near by.
The ability to regrow limbs lost through accident or the action of their nemesis is a power usually thought of as belonging only to comic - book heroes, but in nature the ability to regenerate tissues and
even whole limbs is surprisingly widespread across the plant and animal kingdoms.
These models cover
the whole limb, thus help a larger group of muscles in recovering themselves.
These models put pressure on
the whole limbs.
Remove enough of any muscle and you might as well lose
the whole limb, the chances of regeneration are so remote.
Nelson says axolotls are especially good at nervous system regeneration, which appears to play a central role in
the whole limb regeneration process.
In dramatic contrast to the poor repair outcomes for humans and rodent models such as mice, salamanders are able to completely regenerate heart tissue,
whole limbs and many other tissues following injury, at any life stage.