A Tail of Lizard is just Single-Use ??!!

Usually, we talk that lizard cut off its tail to express keep safe important thing by sacrifice of less important thing metaphorically. (we can sometimes see this expression in news about high-official people's corrupt scandal). Actually, lizard often cut off its tail and run away while its predator pay attention to the tail.

However, a interesting study result has been released that tail-cutting like this is very significant determination which accompanys with high-risk.

According to original reports...

Cutting tail is very big burden for lizard itself. Without tail, it's easy to become a prey by natual enemies, cannot grow during making a new tail, get dull in motion and demoted in social position among its group. so cutting tail is not easy to decide at all.

Moreover...

New tail that replaced is more monotonous in color than old one and consists of cartilage, not spine, it cannot be cut off again.

Finally, tail of lizard is just single-use. even though it cannot match up to sting of honey bee, cutting tail is the last way being used at only deadly crisis. Beyond dispute, the lizard cutting off its tail at once must quail more than other ones.

It seems like facing herd of zombies without ink ribbon in 'Bio Hazard' game (if you're mania of BH, you could understand :))