As I mentioned before in my previous blog post planarians are some of my favorite animals. In my opinion they are very interesting and very freaky.
You might be thinking “What’s so interesting, it’s just a worm.” well, you see Planarians are worms with extreme regenerative abilities. These worms can regrow their entire body from just 1/279th of its body, Which means it can regrow its brain. not only that but the planarian will still retain memories. Also their there regeneration means that they don’t age.
There is a way to kill to kill them though. Enough radiation can kill a planarian. However, if one planarian is going to die then a single cell transplant from another planarian can save it. It’s so hard to kill something that is “Just a worm.”
Anyway, thank you for reading my blog posts.
P.S. Planarians can also die of diseases, being squashed, and possibly, being burned.
Alex's Amazing Animal Facts 