I'm a very casual comic reader, so I'm not all that familiar with the history of the Owl.  I've been reading some Dare Devil comics, and in the more recent comics, Owl's appearance looks pretty similar to Wolverine (the hair). And now I'm reading Dare Devil #500 and Owl whipped out 3 wolverine style claws on each hand. Can anyone explain how and why Owl has these claws?

Leland was a wall-street wizard and got the nickname Owl by his peers. The IRS started snooping and revealed his ties to the underworld. Depressed, he took a serum that gave him the ability of flight. He has had several clashes with Daredevil, Spider-Man, Black Widow, and even Doctor Octopus. Through the years, the serum has caused him to mutate further. He has recently resurfaced to take revenge on Daredevil. The Hood later killed Owl in order to gain respect among the figures of New York's criminal underworld.

They are artificial blades he wears, not a power or implant. He's used them on and off since at least the 1980s

http://www.comics.org/issue/36931/cover/4/