you are a fossil (or permafrost mummy) found by a Paleontologist who runs a company called "Extinct Resurrection". The scientist finds blood inside you, and examines your prehistoric blood. He finds out that your bloodcells are somehow in a mindblowingly frozen state, where the bloodcells don't disappear until they detect heat. The scientist decided to put the blood back into your frozen, or fossilized carcass, and began to resurrect you. It took 3 weeks until he saw the first sign of life coming from your now-alive carcass. You opened your eyes for the first time in millennia, slowness and struggle trying to pull you back into your eternal sleep.

(What species are you?)