* Longhorns aren't "steers". A steer is a castrated male bovine. Longhorns are a breed of cattle, and can be either male or female.
* Male and female longhorns have distinct differences.
* Males: Tend to be larger and heavier than females. They have a distinctive "scrotum" hanging behind their rear legs. Their horns are generally thicker and longer, and they may have a more pronounced hump over their shoulders.
* Females: They are typically smaller and lighter than males. They have a "udder" between their hind legs. Their horns are usually thinner and shorter than males.
So, a female longhorn is different from a male longhorn in the same ways any female cow is different from a male cow. The term "steer" doesn't apply to a longhorn, as it refers to a castrated male of any breed.