These four clips were made in the Grand Canyon with a hand-held point and shoot camera.  What you are seeing is called “amplexus,” which is the love embrace of certain toads and frogs.  The two sexes join together during copulation, often for hours.  Indeed, in this instance, I disturbed the amplexus of this couple, and they became separated.  The male then hopped back up to approach the female.  What is particularly fascinating is the communication between the two individuals.  You can see the male make signals to the female, who then indicates it is safe for him to reengage, and he does so.