Saturday, April 23, 2011

Bighorn Sheep - Photo of the Day - April 23rd, 2011

"Bighorn Sheep"

Bighorn sheep are named for their large, curved horns atop their heads that weigh around 14 kg on a male. Though both sexes have horns, the males are much larger, and are utilized in the headbutting battles for female's attention during mating season. These horns advertise to females a male's health and age since they continuously grow through his life. Their body also has double-layered skulls supported by struts and a huge tendon linking the head and spine to cushion the blows from their rival.

Photo taken at the Calgary Zoo, Calgary, Alberta, Canada.

View this image on my Website.

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