The frog appears to be Cruziohyla craspedopus, which a Google Image search shows as being either bluish or greenish (via). The lizard is described at its via as being a collared lizard.
Blue is a very unusual pigment in the animal kingdom; AFAIK, most blues are the result of structural alterations rather than pigments. These photos could be somewhat manipulated, or perhaps the specimens are variant morphs of their species. ??
Blue is a very unusual color in the animal kingdom
ReplyDeletePlenty of blue birds though. Blue-Jay, Painted Bunting, macaws.
And on Aruba, there are cute blue lizards as well.
https://en.wikipedia.org/wiki/Cnemidophorus_arubensis
I am not convinced that blue is a rare color in nature. Plenty of blue birds, flowers, fruits, butterflies, lizards and dragon flies.
I am afraid I phrased that badly. I didn't mean to say that the color blue is rare in nature, but that the pigment blue is relatively rare. Blue colors typically come from structure, not pigment, including in birds -
Delete"Not all structural colors are iridescent. Tiny air pockets in the barbs of feathers can scatter incoming light, resulting in a specific, non-iridescent color. Blue colors in feathers are almost always produced in this manner. Examples include the blue feathers of bluebirds, Indigo Buntings, Blue Jays and Steller’s Jays."
https://academy.allaboutbirds.org/how-birds-make-colorful-feathers/
Indigo?
DeleteSooo, out of curiousity, I looked them up. As you said I think the frog image was manipulated a bit, more of a blue green in what I saw. The lizard seems to be quite a blue color! Pretty either way. Though I wonder if the color serves as a warning or camouflage?
ReplyDelete