American Museum of Natural History - Male bighorn sheep (Ovis canadensis) have the most elaborate horns of any North American species. But they're not just ornaments: the horns are integral for defense
![Genes | Free Full-Text | The Complex and Diverse Genetic Architecture of the Absence of Horns (Polledness) in Domestic Ruminants, including Goats and Sheep Genes | Free Full-Text | The Complex and Diverse Genetic Architecture of the Absence of Horns (Polledness) in Domestic Ruminants, including Goats and Sheep](https://www.mdpi.com/genes/genes-13-00832/article_deploy/html/images/genes-13-00832-g001.png)
Genes | Free Full-Text | The Complex and Diverse Genetic Architecture of the Absence of Horns (Polledness) in Domestic Ruminants, including Goats and Sheep
![Male Rocky Mountain Bighorn Sheep With The Beautifully Curved Horns Stock Photo, Picture And Royalty Free Image. Image 131470226. Male Rocky Mountain Bighorn Sheep With The Beautifully Curved Horns Stock Photo, Picture And Royalty Free Image. Image 131470226.](https://previews.123rf.com/images/samum/samum1910/samum191000022/131470226-male-rocky-mountain-bighorn-sheep-with-the-beautifully-curved-horns.jpg)