Why do female bovids have horns? Here.
- Fast Fact Attack: Endangered Species No. 95 – The American Bison (mungaiandthegoaconstrictor.me)
- American Bison- Animal of the Day (islandparkservices.wordpress.com)
- Study: Bison Birth Control Working on Catalina Island (kcet.org)
- Bison vaccination program’s negatives outweigh the positives (billingsgazette.com)
- Chapter 14 – Buffalo in Golden park (sanfran321.wordpress.com)
- Wildlife Conservation Society and Wind Cave National Park Celebrate Landmark Conservation Effort that Helped Save a Species from Extinction (outdoorhub.com)
- Wow! The Most Amazing Images in Science This Week (livescience.com)