Why do wolves attack the hindquarters of a bison instead forequarters?

Wolves don't typically target the hindquarters of a bison specifically. Their hunting strategy is focused on bringing down the prey through a combination of tactics:

* Targeting the vulnerable areas: Wolves target weak points like the nose, throat, and flanks of a bison. These areas are less protected by thick fur and offer the best opportunity for a fatal bite.

* Endurance and teamwork: Wolves use their endurance to tire out the bison through prolonged chases and coordinated attacks. They aim to separate the bison from the herd and isolate it for a more effective kill.

* Focus on the kill: Once a wolf has managed to bite into a vulnerable area, other wolves join in to deliver multiple bites, causing severe wounds and ultimately leading to the bison's exhaustion and death.

While wolves might occasionally bite the hindquarters, it's not their preferred target due to the thick fur and the bison's powerful hind legs. The focus is on bringing down the bison quickly and efficiently, and that usually involves targeting the more vulnerable areas.