The Giant Short-faced Kangaroo had a flat face and forward-pointing eyes. On each foot it had a single large toe something like a horse's hoof. On these unusual feet it moved quickly through the ...

Graced with large, powerful hind legs and feet; a big, muscular tail; and a narrow, strongly fused pelvis, a kangaroo moves like a bouncing ball. The trick is in its elastic tendons, which store ...