Hello, I'm an expert in comic book lore, particularly when it comes to the Marvel Universe and its characters. Let's delve into the relationship between Wolverine and Sabretooth.

In the Marvel Universe, Wolverine and Sabretooth are not biological brothers, but they share a complex and often antagonistic relationship. They are both mutants with a long history together, and they have been portrayed as having a rivalry that spans decades. Wolverine, whose real name is Logan, has a healing factor, adamantium-laced skeleton, and retractable claws. Sabretooth, on the other hand, is named Victor Creed, and he possesses similar abilities, including a healing factor and enhanced senses, but his claws are not made of adamantium.

The misconception that they might be brothers likely stems from their shared history as part of the Weapon X program, where both were subjected to experiments and manipulations. Sabretooth was involved in earlier stages of the program, while Wolverine became a central figure in the program later on. Their shared experiences and the fact that they are two of the oldest known living mutants have led to speculation about their familial connection, but it has been consistently depicted in the comics that they are not brothers.

read more >>

In X-Men Origins: Wolverine, Victor Creed is never referred to as Sabretooth, while in X-Men is exactly the opposite. ... In the comics, Sabretooth and Wolverine aren't actually related. James's half-brother through Thomas Logan in the comics is named Dog Logan.read more >>