anyways about the whole not dying thing...
Assasination Attempt #1 --- Dry Ice
These guys can live in temperatures as cold as -460 °F (273°C) thats damn close to absolute zero! (they have even been exposed to dry ice... when the ice stuffs wore off... they came back to life!!!)
Assasination Attempt #2 --- Radiation
If you have ever read a marvel comic book... you are aware of the effects of radiation... or you know if you live anywhere like Las Vegas, New Mexico, Kazakhstan, or anywhere that has beheld the tragic distruction caused by Gojira (Godzilla). Well waterbears have no idea what the big deal is. They just go about their lives when exposed to the stuff! No weird mutations, no cancer, no death. Just keep swimming just keep swimming, swimming swimming...
Assasination Attempt #3 --- That's it launch the friggin things into space!!!!
Yup that's right failed attempt after failed attempt waterbears were finally brought into space. Scientist figured that was it, I mean its freaking space!!! A lifeless vacuum right?! Nope. (shows what we know) in 2007 the FONTON-M3 mission took waterbears well away from the water and into low Earth orbit... NASA can be so heartless sometimes... they left the poor little guys out there, naked, for 10 days... Upon their return scientists discovered that most of the waterbears survived the exposure... and apparently had gotten horney... because they laid eggs... which hatched... still no mutations (gojira still reigns as king!)
so yeah... waterbears, moss piglets, tardgrades... frickin...ROCK! silly microbial zombie...vampire...bears.
Grrr...Raaar...
So... just a thought which constantly irritates me. So these guys survived in space right? I mean we don't even know how long they can last in space because they were brought back not after they died but just after an experiment that lasted 10 days and they were still alive. They can live in space... and they live on Earth. I'm sure that this experiment has been done with many different organisms but not all organisms that live on Earth right? and we haven't found any pre-existing life forms IN space right? well that's like saying there's no sea monsters because we haven't seen them... but we kinda have... ahhh colossus squid anyone? I mean they say we've only explored about 10% of the ocean... So my point is... numbers wise (and I will readily admit I am terrible with numbers, which is why I'm not typing out math logic) if we have found an organism that can live in space right here in the small pool of creatures we have run this experiment on it would be reasonable to say that there are other organisms on earth that could withstand the same test. And if there are other organisms just in the small scope of Earth... don't you think it would be reasonable to say that there is life out there? Alien waterbears maybe?