It’s no surprise that livestock animals like cows, sheep, and goats love gnawing on grass. Grazing is what they do, becausetheir stomachs are able to digest all of the cellulose in grass. But unlike these animals, dogs are omnivores, related tomeat-eating hunters like wolves. Yet, if you own a dog, you may have seen your dog snacking on grass while out in yourbackyard or on a walk. So why do dogs eat grass? Is it totally normal dog behavior?
     Though eating grass might seem unusual for dogs, it’s actually a fairly common habit that many dog owners have noticed.Though canines were historically carnivorous, they actually evolved as omnivores that would eat whatever was available,including vegetation. Also, the animals that dogs’ ancestors would eat were usually herbivores, so when the wild dogs killedand ate their prey, they’d by extension be eating whatever the prey animals ate — plant life.
     So, their wild ancestors ate vegetation, but what’s the reason domesticated dogs still do it — and why do dogs eat grass,specifically? Well, different dogs might eat grass for different reasons. It’s usually nothing more than a sign of boredom in dogs.Or, your pup could simply like the taste or texture of grass, like a human munching on a celery stick. If your dog eats a lot of it,eating grass regularly could be a sign that your dog is not getting enough fiber and is seeking out natural herbs to eat.
36. What is the best title for the passage?
(A) Why do cows love grass?
(B) Why do dogs eat grass?
(C) Why are wolves omnivorous?
(D) Why are canines carnivorous?
(E) Why do human beings eat celery?