How, again, shall I explain this bit of observation? More than six years I lived near a mudhole that dried up in July. I passed it almost daily. One spring there was a strange toad-call in the hole, a call that I had never heard anything like before—a deafening, agonizing roar, hoarse and woeful. I found on investigation that the water was moving with spade-foot toads. Two days later the hole was still; every toad was gone. They disappeared; and though I kept that little puddle under watch for several seasons after that, I have not known a spade-foot to appear there since.
The water was almost jellied with their spawn, and a little later was swarming with spade-foot tadpoles. Then it began to dry up, and some of the tadpoles were left stranded in the deep foot-prints of the cows along the edge of the hole. Just as fast as the water disappeared in these foot-prints, the tails of the tadpoles were absorbed and legs formed, and they hopped away—some of them a week before their brothers, that were hatched at the same time, but who had stayed in the middle of the pond, where the deeper water allowed them a longer babyhood for the use of their tails. So swiftly, under pressure, can nature work with this adaptable body of the toad!
Long before the sun-baked mud began to crack these young ones had gone—where? And whence came their parents, and whither went they? When will they return?
