Large mammals, such as Roosevelt elk, black-tail deer, black bear, and coyote, use grasslands as foraging areas and/or travel routes to adjacent lands. Smaller mammals, such as voles and mice, thrive in grasslands. These smaller mammals serve as prey for raptors such as red-tailed hawks, northern harriers, American kestrels, and various species of owls, all of which use open grasslands as hunting grounds. Songbird and shorebird species use grasslands to rest, nest and feed.
Vitamins D, E and the Bs. The B vitamins support energy production and protein metabolism, both of which are key to muscle building. You usually get enough B vitamins through your diet, but vitamin B-12 may be lacking in vegans and vegetarians, so check with your doctor to see if you might need a supplement.
Photo Credit BackyardProduction/iStock/Getty Images. Nothing replaces a solid weight-training routine when it comes to building muscle, but certain vitamin supplements might help augment your results. Before you start popping pills to get fast results, consult with your doctor to see if you have a deficiency. An excess of vitamins won't make you grow muscle faster, but a deficiency may prevent you from reaching your potential.