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In a second order of the salamanders the gills are lost in the metamorphosis, and when fully grown they have only pulmonary respiration. In this fish-like condition they reach sexual maturity, and remain throughout life at the lower stage of the gilled Amphibia. It was formerly regarded as a permanent gilled amphibian persisting throughout life at the fish-stage.
A large, furred amphibian lay at the water's edge, the fletched end of the crossbow bolt projecting from its thick neck and a thin stream of blood running down to mix with the surging waves. "Meat! Meat today!" "Ch'aka kills the rosmaro! Ch'aka is wonderful!" "Hail, Ch'aka, great provider," Jason shouted to get into the swing of things. "When do we eat?"
Or it is as if I were told that I liked to swim in the sea, solely because some early forms of amphibian life came out of the sea on to the shore. I answer that I know why I swim in the sea; and it is because the divine gift of reason tells me that it would be unsatisfactory to swim on the land.
Just before that attempt at assassination, I had a chin-chin with him. The fastest battle cruiser in the Navy, the Denver, is to be placed at my service. It will carry a big amphibian plane, so be equipped to assemble and launch it. Bolton will relieve you from the Presidential guard to-day. We sail in the morning." "Where for, Doctor?"
Their ancestors also had long tails and gills like the gilled Amphibia, as the tail and the gill-arches of the human embryo clearly show. For comparative anatomical and ontogenetic reasons, we must not seek these amphibian ancestors of ours as one would be inclined to do, perhaps among the tail-less Batrachia, but among the tailed lower Amphibia.
The first point to which attention may be directed is that involved in the statement that the amphibian has been imprisoned in a solid rock. Much stress is usually laid on the fact that the rock was solid; this fact being held to imply the great age, not to say antiquity, of the rock and its supposed tenant.
But sleep is next to impossible; the morning finds me feeling but little refreshed and with a decided yearning to remain all day long in the shade instead of taking to the road. Not a moment's respite is possible from the oppressive heat; an hour in the saddle develops a sensation of grogginess and an amphibian inclination for wallowing in some road-side tank.
To the parents who desire to lead the child's mind through a long sequence of thought from the lower to the higher life, the amphibian affords an easy step in this ascending scale. And among amphibians that familiar and picturesque harbinger of spring, the frog, and his cousin the friendly toad, are the best adapted. Children are always interested in frogs because they jump so well.
The tadpole now rises more frequently to the surface where it takes small mouthfuls of air. Meanwhile great changes are effected inside the body where the various systems of fishlike organs become remodeled into amphibian structures. A sac is formed from the wall of the esophagus, and this enlarges and divides to form the two simple lungs.
Of course you know the Surinam toad whom not to know argues yourself unknown that curious creature that carries her eggs in little pits on her back, where the young hatch out and pass through their tadpole stage in a slimy fluid, emerging at last from the cells of this living honeycomb only when they have attained the full amphibian honours of four-legged maturity.
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