But he was rapidly proven wrong by a young Dutchman, Jan Swammerdam. Swammerdam's elegant experiments pioneered the frog nerve–muscle preparation and laid the foundation of our modern ...

Imprinted in a slab of sandstone are parts of the tadpole's skull and backbone, along with impressions of its eyes and nerves ... Researchers know frogs were hopping around as far back as ...

Using genetically engineered viruses, researchers can trace the development of frog and salamander nervous systems.

The frog was killed and his eye was then immediately removed. The eyeball was cut in two and the optic nerve, which ordinarily connects it with the brain, was attached instead to two electrodes ...

1–3 have shown that in the frog there are two very distinct types ... Further differences that fibres of the spike type are innervated by fast nerve fibres and give only a transient contraction ...

The fossil is a fantastically preserved specimen of the frog species Notobatrachus degiustoi, complete with imprints of soft tissues, including the animal's eyeballs, gills and nerves, according ...