The nuchal ligament of large grazing mammals provides support for the head and seems to act as a shock absorber, due to the presence of the protein elastin.

References

"Our own rubber, elastin, occurs mainly as a component of two composites, skin and arterial wall. The nearest thing to pure elastin is the nuchal ligament of large grazing mammals. It runs from a ridge on the rear of the skull back along the top of the neck to the thoracic vertebrae; it seems to act as a shock absorber as well as a support for the head." (Vogel 2003:304)

Book
Comparative Biomechanics: Life's Physical World, Second EditionMay 27, 2017
Steven Vogel

Living System/s

Organism
Antelopes, Cattle, Gazelles, Goats, Sheep, And RelativesBovidaeFamily