(sigh) You "city slickers"...
Of course cows have horns.
From http://www.alienexplorer.com/ecology/m218.html
Horns are found on sheep, cattle, bison, and antelope. Horns are never shed. They continue to grow throughout the animal's life. If horns are broken in a fight or accident, they don't grow back. ... Most often, both male and females have horns although the male's horns are usually larger. ... Antlers are found on the deer family: deer, elk, caribou, and moose. Antlers are deciduous, meaning they are shed and grown new each year. Among the females of the deer family, only the female caribou normally has antlers.
It is not uncommon for women to have fluctuations in sexual desire at different times of their cycles (some of us more than others ). As my farm boy/biologist husband is fond of pointing out, the human female reproductive system is very similar to the bovine reproductive system, except humans are vertically laid out while the cow's is horizontal (I heard that. You have a dirty mind).
Physical anthropologists will tell you that the human species ability and interest in sex at all times of the reproductive cycle is one of the wonders of evolution. The male doesn't know for sure when the female is actually fertile, enhancing the chance he'll stay around and stay interested, so that his genes get passed along. This means he's there to help the female raise the young (usually). Human young take an inordinate amount of time and energy to raise compared to, say, a calf who's up and walking within hours and weaned and gone in less than a year.
This does not, however, chance how mysogynistic and insulting that article is.