Saturday, April 01, 2006
Giraffa II
Highly selective browsers feeding primarily on a variety of Acacia and Combretum species. Over a hundred species may be eaten, depending on what is seasonally available. Although mostly leaves and shoots are taken, giraffe also eat flowers, vines and herbs. Giraffe have also been seen to eat weaver-bird nests with young inside, and may chew on bones, perhaps to gain additional minerals. An average of 16-20 hours per day are spent feeding and up to 140 lbs of fresh browse are taken. Thorns do not seem to be a deterrent to feeding; the long, prehensile, muscular tongue (which can be extended up to 18 inches), thick, gluey saliva, and special upper palate shape enable the giraffe to process thorny foods. They are ruminants with a 4-chambered stomach.