an animal that CAN LIVE FOREVER!?!?!

[lestatdark]

Soriku said:

dtewi said:

Soriku said:

dtewi said:
This doesn't propose immortality.

This prevents death from old age. I can still take that jellysfish, rip it open, and kill it.

Not so immortal.

 

Even immortal things can die. The point is even if they do they still come back to life. It's not like there's some anti-death aura around things like this jellyfish.

Incorrect.

Im - defined as not

Mortus - defined as death

Basically, immortal means no death. Therefore, if something is immortal, it cannot die. Besides, the jellyfish dying would seem more of an asexual reproduction, not constant regeneration.

I worded it wrong. What I meant is that it can enter into a death situation (like blowing its head off) so it did die but at the same time not really as it's immortal. It got into a situation where death would happen but it didn't actually die.

I've seen people confusing the two things in the thread for quite some time now. Immortality is not the same as invulnerable. There are a lot of bacteria which are immortal too, or at least immortal given their extremely long life span, as they live on creating the same copy of itself (no change to its DNA). 
But if someone disrupts it or enviromental factors kick in and denaturate the bacterial cell, it dies, even though it's immortal. That's because nothing is invulnerable. As we're (every living thing) made of proteins and a bucketload of other organic matter, there's not a single being that's invulnerable.