Brought to you, with love, from that awesome axolotl:
oh, yeah; it’s an olm: take a gander
Homer’s Old Man of the Sea
hail the pale protean deity
terrific three-toed, two-toed salamander!
The olm was used by Charles Darwin in his famous On the Origin of Species as an example for the reduction of structures through disuse:
Far from feeling surprise that some of the cave-animals should be very anomalous…as is the case with blind Proteus with reference to the reptiles of Europe, I am only surprised that more wrecks of ancient life have not been preserved, owing to the less severe competition to which the scanty inhabitants of these dark abodes will have been exposed.
Why, it even looks spry on a tie!
Can you see me? Oh, hi! Such camouflage.
The NYPL PD picture I built this on names it a tree toad. Not three-toed. Its scientific name is Hyla versicolor (Wikipedia):
As the scientific name implies, gray tree frogs are variable in color owing to their ability to camouflage themselves from gray to green, depending on the substrate where they are sitting. The degree of mottling varies. They can change from nearly black to nearly white. They change color at a slower rate than a chameleon. Dead gray tree frogs and ones in unnatural surroundings are predominantly gray. The female does not croak and has a white throat; however, the male does croak and has a black/gray throat. The female is usually larger than the male.
A deserving poster-child!
And just look at this pretty fringed-, egg-nomming mouth of the tadpole of a newly-discovered tree-hole breeding frog from India: