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Originally posted by Dreamstone
I remeber seeing a programme on the discovery channel about some mysterious prehistoric giant sloths in south america. Though I can't imagine it being to hard to find a creature the size of a buick that sleeps three-quarters of the day, is there any infos or pictures out there? Not terribly exciting but I'm interested in this
It was a herbivorous animal and, although it could stand on its hind legs, using its tail as a balancing tripod, to reach for vegetation, the giant ground sloth fed chiefly on terrestrial plants.
Rising on its powerful hind legs and using its tail to form a tripod, Megatherium could support its massive body weight while using the curved claws on its long forelegs to pull down branches with the choicest leaves.
Richard Fariña and Ernesto Blanco of the Universidad de la República in Montevideo have analysed a fossil skeleton of M. americanum and discovered that its olecranon - the part of the elbow to which the triceps muscle attaches - was very short. This adaptation is found in carnivores and optimises speed rather than strength. The researchers say this would have enabled M. americanum to use its claws like daggers.
...
Paleontologist Richard Farina suggested in 1997 that the giant sloth may well have been a carnivore, although this is a controversial claim.[5]
Xenarthrans have the lowest metabolic rates among the therians.
Xenarthra includes the anteaters, tree sloths, and armadillos, as well as the extinct ground sloths, glyptodonts and pampatheres. In the past, these families were classified together with the pangolins and aardvarks as the order Edentata (meaning toothless, because the members do not have front incisor teeth or molars, or have poorly-developed molars)
Originally posted by Sargoth
There may be a Giant Ground Sloth in the Pine Barrens of NJ. My brother saw something that fit the description around 1976 out in the pine barrens. No he wasn't drunk or on drugs.
[edit on 2-8-2009 by Sargoth]