When some animals are attacked, some will quickly remove a tail, and some will simply shed a leg, and then grow new limbs. This is true of worms, salamanders, lizards, salamanders, etc.
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However, Contemporary Biology recently reported that researchers at Nara Women's University in Japan have found that sea slugs can actually grow a complete new body on the head after the severed head.
The sea slug is a shellless marine mollusk, hermaphroditic. In the lab, the researchers stumbled upon a sea slug that had lost its head, was still able to move around, and survived. After the head and body of the sea slug are separated, the two parts move independently. After a few days, the wound on the back of the head healed and seaweed continued to be eaten. Within a week, a new heart is regenerated, and within three weeks, the whole body is regenerated, and all the organs are available. The headless body, on the other hand, does not grow a new head, but is still able to move around and respond to touch.
Studies have found that the progress of the regeneration process is related to age. It doesn't take long for the young sea slugs to return to their original state after the head is shed, but the old sea slugs lose their heads without eating or drinking, and they whimper for life in about ten days.
Source: Beijing Daily Author: Yi Bing
Process Editor: L006
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