Both types of hurdle stretches loosen up the hamstring in the same way. But the hurdle stretch with the leg pointed back puts sideways torque on the back knee and can result in injury. So while the potential benefit of the exercises are the same, one risks serious injury to the knee.
well first off i think the duckling would not know what to do because they dot see their mother or parents, i think the duckling will just have to live is own life from now on...