+1
In the 2011 movie, it escapes the ice block... attacks... is burned... and seemingly dies.
Burning the creature doesn't actually kill it fully. It simply stops it.
I've come to the conclusion that when on fire, and then put out, the creature is actually just playing dead... sitting, waiting, regenerating a little... so it can then attack something else and carry on living.
Like in the 1982 movie, the team finds that two-face corpse... it's been burned, and left out in the freezing snow for days... yet once back at the American camp, it reanimates and starts taking people over. The first one being Bennings (this is all after the weirdness with the dog of course).
In the original movie, Blair's notes are looked over by Fuchs.
Blair's notes clearly state "There is still cellular activity in these remains, they're not dead yet"
Fuchs later elaborates that "If just one particle is enough to take over an entire organism, I suggest we all prepare our own food and we only eat out of cans".
Basically Fuchs is saying that if the tiniest piece of the creature is alive and comes into contact with a living creature, it will take over...
The original creature was buried in the ice for over 100,000 years... it's a durable animal, and fire and ice, freezing, shooting etc. will only kill the outer layers, or only kill a certain percentage of the current body it is using.
Also... if you think about what Macready says as well... "When we bleed, it's just tissue."
He's saying that when The Thing "bleeds", it's not actually blood. It's the creature separating. The blood is simply the creature imitating blood. The "blood", becomes a "separate animal" so-to-speak.
The best way to think about the creature, is not as a solid animal.
It's a virus. A germ.
Each tiny cell being an individual creature... and when all the billions of cells are together they act like a whole. This is why you can have Norris on that table being burned... and his head detaches, grows legs, and tries to bugger off down the corridor. The cells within the head were making an escape from the parts that were being burned.