I was watching this and the Leopard is walking normally, but noticed at the background there's 2 tortoises (the biter + ) are they dragging their back legs, is this normal? what will cause this? Thanks
http://www.youtube.com/watch?v=CtobwGwSAqY&feature=related
http://www.youtube.com/watch?v=CtobwGwSAqY&feature=related