According to the comics Wolverine was
born with the following mutant powers:
1)Heightened senses, sight, sound, smell, etc.
2) He possesses retractable bone claws that are housed in his forearms, they are part of his skeleton system. At will Wolverine can release these claws through his skin between the knuckles on each hand. The skin between the knuckles tears and bleeds, but bleeding is quickly halted by his healing factor. (see below)
3) Lastly, Wolverine possesses an accelerated healing factor based on his physiology. While most normal humans heal injuries over a long period of time, Wolverine's healing factor speeds up that natural process. Wolverine's natural healing has been advanced to the point where he can heal extensive injuries (such as broken limbs) in a matter of hours to days. This factor gives him a higher resistance to poisons and toxins, and he can recover from almost any injury. The more extensive the injury, the longer the healing time will be.
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The adamantium skeleton he has is due to a program called
Weapon X. They grafted the metal to his bones, he only lived b/c of his mutant power to regenerate extremely fast. I believe in the movie Stryker is only supposed to have given him the adamantum skeleton.
Try this link for a longer bio and more info on him...
http://www.marveldirectory.com/indiv.../wolverine.htm
oh, and just for kicks Wolverines weight
Weight: (without adamantium skeleton) 200 lbs., (with adamantium skeleton) 300 lbs.