In contrast, fibroblasts in the adult salamander limb maintain a memory of this information system and can reaccess the positional Hox code in the process of limb regeneration.
For example, rising sea levels mean that salt water is travelling up rivers, and that's trapping animals like frogs and salamanders, who... they have less space to live and that's why they're in danger.
The same effect has been observed among Salamanders in Appalachia… Red deer in Norway… Woodrats in New Mexico… Fish in the Atlantic and Gulf of Mexico… And beetles around the world.
The salamanders may have cells that are poised, ready to take place in a reaction of regeneration and that human cells could be somewhat locked down in their potential.
From this elastic energy release, the salamander achieves more instantaneous power per kilogram of muscle than any vertebrate on record, affording it whip-quick captures.