These dog chews made from bull penis make for a great doggie treat. (mypetneedsthat.com)
When you see a dried bull penis in a pet store, you might not realize that's what you're considering buying as your dog's newest chew. (animals.howstuffworks.com)
A higher proportion of veterinarians (62 percent) were able to correctly identify the source of bully sticks as bull penis compared to general respondents (44 percent). (compassionatecareveterinaryhospital.com)