EVERYDAY SCIENCE

Detailed explanation-1: -In the case of hydra, the lost part is regenerated. The cells regenerate back to their original state after injury. Several species of Echinoderms can even regenerate their lost arm. For example, starfish.

Detailed explanation-2: -The axolotl (say “ax-oh-lot-el") is a Mexican species of salamander. It’s also known as a Mexican walking fish. It can regenerate, repair or replace its arms, legs, tail, lower jaw, brain and heart.

Detailed explanation-3: -Regeneration. Beyond their distinctive shape, sea stars are famous for their ability to regenerate limbs, and in some cases, entire bodies. They accomplish this by housing most or all of their vital organs in their arms.

Detailed explanation-4: -Some animals are known for their ability to regrow – or regenerate – body parts following dramatic injury. Starfish are among the most famous and dramatic examples, being able to grow an entire new body from just a single arm. Starfish also have the ability to regenerate neurons, something not seen in many animals.

Detailed explanation-5: -Starfish have remarkable regenerative qualities and they can not only regrow new limbs but can also grow a whole new body from lost limbs.