One hypothese about TLD's wolfs

[GarulfoDG]

I just found this interesting news, and i can't help but think it could be one explanation of TLD's wolf's behavior : National Geographic and Washington Post.

"Hybrid offspring of coyotes and wolves have spread south along the eastern seaboard, a new DNA study confirms. (...) other East Coast hybrids seen alive or identified by their remains are noticeably larger, with more wolf-like skulls, jaws, and teeth (...)."

This french page from "Science et Avenir" says its 60 % coyote, 25% wolf, 15% dog. This kind of hybridation could change wolf's behavior.