Yellowstone National Park - Did you know that bighorn sheep rams have shock absorbers? Rams have two layers of bone above their brains, an adaptation to absorb the impact when rams butt
Two Dall Sheep Rams Preparing To Butt Heads In A Dominance Display, Mount Margaret, Denali National Park, Alaska PosterPrint - Item # VARDPI2093204 - Posterazzi
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Rams butt heads during aggressive rut, FWP reports | Valley Press/Mineral Independent
Why Do Rams Headbutt? [Aggression, Boredom, Genetics? Or Something Else?] - Outdoor Happens
Rams butt heads during aggressive rut, FWP reports | Valley Press/Mineral Independent
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VIDEO: Big Horn Rams Butt Heads In The Colorado Rocky Mountains | Whiskey Riff
How to Defend Against a Ram: 7 Steps (with Pictures) - wikiHow