Octopus
Octopuses are not only very intelligent animals, but also have the ability to repair their tentacles. They can do it in about 100 days.
Alligator
Although these large reptiles cannot repair their bones or skeletal muscles, they can repair cartilage, connective tissue and skin. Scientists have even found that young alligators are able to restore their tails up to 23 cm.
Cockroach
Cockroaches can also rebuild their limbs. In fact, they can even survive without a head for days! Although they will not be able to restore it.
Sea stars
Some starfish are able to build a whole body from severed limbs. This is due to the fact that all vital organs are in their hands. In addition, they lack blood, which probably helps.
Salamander
These amphibians have the ability to regenerate a lost limb. Once traumatized, their cells are reprogrammed from their genomes to replace the missing limb.
Jellyfish
Jellyfish have amazing regenerative properties. This is especially true of Turritopsis dohrnii, also known as the “immortal jellyfish”. When injured or starving, these jellyfish can regenerate themselves.
Chameleon
These cool animals can not only change their colors, but also restore their limbs and tails. All this thanks to special stem cells.
Green iguana
These amazing animals can amputate their tails when they feel threatened. Then their tails can grow back.
Deer
Deer are a very unique phenomenon on this list because they are mammals. And although their leg will not grow, they have the ability to restore their horns.
