The students found the bone last spring in an Ice Age sediment deposit ... At full size, they were about the size of an ox, up to three meters long, and weighed 2,200-2,425 pounds.

these sloths were one of the strangest animals of the ice age. They weighed as much, or more, than the short-faced bear at 1 tonne and stood 3 metres tall, growing to the size of an ox.