Well in my opinion humans are ignorant. Just because we won't be able to survive without water, or in that temperature, it doesnt mean something else wont be able to? If there is life on other planets, obviously they'd have different living conditions to us and some maybe wouldnt even NEED water to survive. Some might need fire to survive. Im not sure about Mars, but I definately think theres life on other planets. Its a bit weird that Earth is the only planet with life on it??

all life on this planet has one element in common which is carbon cos we are all related to the bacteria found within larva which is thought to be the first life before water was here ... then comets of ice came ... bacteria was also in these comets ... when the larva and water mixed it started evolution...
before theres any arguments thats what i believe your entittled to you opinion.

well thats cool baby

Yup ;)