What are bully sticks?

Unbeknown to most, bully sticks (aka bull pizzles) are a chewable dog treat that is made from the penis of a bull. Yes, you read that correctly.

Why are they called bully sticks?

They are called bully sticks because they are made from the "pizzle" of a bull and are stretched and baked in the shape of a stick.

What is a beef bully sticks made of?

There is no difference between a bully stick and a beef bully stick. They are both made from beef and the pizzle of a bull.