A tree frog is any frog that spends a major portion of its lifespan in trees, known as an arboreal state. Several lineages of frogs among the Neobatrachia have given rise to tree frogs, even though they are not closely related to each other.
Many millions of years of convergent evolution have resulted in almost identical morphology and ecologies. In fact, they are so similar as regards their ecological niche that in one biome where one group of tree frogs occurs, the other is almost always absent. The last common ancestor of some such tree frog groups lived long before the extinction of the dinosaurs.
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Famous quotes containing the words tree and/or frog:
“a big picture of K. Marx with an axe,
“Where I cut off one it will never grow again.”
O Karl would it were true
I’d put my saw to work for you
& the wicked social tree would fall right down.”
—Gary Snyder (b. 1930)
“Squats on a toad-stool under a tree
A bodiless childfull of life in the gloom,
Crying with frog voice, “What shall I be?
Poor unborn ghost, for my mother killed me
Scarcely alive in her wicked womb.”
—Thomas Lovell Beddoes (1803–1849)