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:
“The spring is here, young and beautiful as ever, and absolutely shocking in its display of reckless maternity; but the Judas tree will bloom for you on the Bosphorus if you get there in time. No one ever loved the dog-wood and Judas tree as I have done, and it is my one crown of life to be sure that I am going to take them with me to heaven to enjoy real happiness with the Virgin and them.”
—Henry Brooks Adams (1838–1918)
“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)