Turkey breasts are so large now that they get in the way of sex!

Because breasts are one of the most popular parts of the turkey to eat, farmers have bred turkeys that have larger and larger breasts over time. Most of the turkeys we eat come from artificial insemination for this very reason.

According to Kai Ryssdal, 82.6 percent of the turkey eaten each Thanksgiving is turkey that came from artificial insemination. Generally speaking, people’s favorite part of the turkey is the white meat, which comes from the breasts. So, turkeys are bred specifically for this purpose. Their breasts get in the way of sex and procreating, and thus, they must be artificially inseminated.

(Source)