Short and stiff spine (9 or less vertebrae are appropriate) with no ribs. This helps to stiffen the core, provides a solid path for transmitting thrust from the limbs when jumping, and maintains posture.
Why is the frog's skeleton decreasing?
Anuran's skeleton is strange for several reasons: it is strange because it is significantly "reduced" (in terms of the number of elements and the area of ossification) compared to that of other tetrapods. Because it's archaic (because it holds a few bits) and otherwise lacking in modern tetrapods), and because they're 0.5 days. 2016
How many vertebrae do frogs have?
The frog's spine is made up of 10 vertebrae, the first of which is called the atlas (7) and is articulated to the base of the skull. Atlas is the only cervical spine of a frog.
Do extant frogs have more vertebrae?
There were many frog-like features, but there were 14 anterior sacral vertebrae, whereas modern frogs had 9 or 10. Earlier fossil amphibians have far more anterior sacral vertebrae, T. massinoti provides a missing link between salamanders and frogs.
What unusual specializations can be seen in the frog skeleton?
With precise control of the long hind legs, amphibians can achieve an "amazing" range of jump angles, from nearly horizontal to nearly vertical.
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