Tree Toads/ Tree Frogs      Another of our interesting amphibians is the small tree-toad or tree-frog which is so often heard but seldom seen by the average person. Although the tree-toad is one of the smallest of all the amphibians. It is, nevertheless, one of the most interesting. The tree-toad does not spend all its life in trees, as one might infer from the name. Instead the tree-toad must go to ponds and streams to deposit eggs which hatch into tiny tadpoles that spend two or three months in the water before being able to maintain themselves on land. Of all our toads and frogs, the tree-toad is the only one equipped with the necessary tools to climb up into trees or bushes. This it does quite often as an adult and it may occasionally be found sitting on a leaf patiently waiting for some insect to come along. This special equipment consists of small round sucker-like discs which it has on all its toes, both fore and aft, and these make it possible to climb with ease; in fact, it seems to delight in walking up the glass panes of the aquarium jar, and out, if the cover is not always kept in place.       But the most interesting feature, as far as our amphibians are concerned, is the fact that it can change skin color to match the color of the background; hence, it is quite inconspicuous among the low leaves of vines or shrubs. Only when it visits the water holes in the spring, or after sudden rain storms, are we aware of its presence, but at that time it puffs out its throat and sings a song no one can mistake, a non-melodious “crack-it” which is all out of proportion to the size of the individual making the noise.      Although the tree-toad is an expert in the art of camouflage, there is one color feature of its anatomy that seems to change very little, and that is the dark black line or bar that extends from the snout through the eye and back through the ear membrane nearly to the shoulder. This tell-tale mark is always present for ready identification of the little tree-