By next spring, they will resemble frogs with tails but will not complete their metamorphosis into adult frogs until the following winter.
But the idea of a frog with a tail, could not be entertained; and I turned next to the marsupials …" Science rejected Hitchcock's ornithoid marsupialoids.
If I asked you whether a frog had a tail, for example, you would summon up a picture of a frog from your long-term memory (image generation), hold it steady in your mind (image maintenance), rotate the frog around until you see his backside (image transformation), and then look to see if there was a tail there (image inspection).
Subjected to an electrical pulse, cells in a developing frog gut or tail would form what looked like normal eyes.
In aquatic salamanders and in frog tadpoles, the tail has dorsal and ventral fins and is moved from side to side as a means of propulsion.
Males of the North American tailed frog, Ascaphus truei, have an extension of the cloaca that functions as a copulatory organ (the "tail") to introduce sperm into the female's cloaca.
We studied populations of the Rocky Mountain tailed frog (Ascaphus montanus) across landscapes that have experienced either timber harvest or broad scale fires.
Frogs have no tail, except as larvae, and most have long hind legs, elongated ankle bones, webbed toes, no claws, large eyes, and a smooth or warty skin.
Several species of frogs are common in the "lost streams" basin and the northeasternmost part of the Snake River watershed, including the inland tailed frog, northern leopard frog, western toad, Columbia spotted frog, long-toed salamander, spadefoot toad.
Gene flow along riparian corridors in Rocky Mountain tailed frogs differs from a population of the closely related coastal tailed frog (Ascaphus truei), for which gene flow appears to occur primarily over land.
