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Updated: June 15, 2025
It is also noteworthy that the subdued bird-voices, some of which are exceedingly sweet and expressive, and the notes of many of the insects and batrachians have a great resemblance, and seem to be in accord with the aeolian tones of the wind in reeds and grasses: a stranger to the pampas, even a naturalist accustomed to a different fauna, will often find it hard to distinguish between bird, frog, and insect voices.
We can see why whole groups of organisms, as batrachians and terrestrial mammals, should be absent from oceanic islands, whilst the most isolated islands possess their own peculiar species of aërial mammals or bats. We can see why there should be some relation between the presence of mammals, in a more or less modified condition, and the depth of the sea between an island and the mainland.
Warm-blooded animals which have fur or hair, bring forth their young alive, and nurse them. House People are Mammals. CLASS II. Birds. Warm-blooded animals which have feathers and lay eggs. CLASS III. Reptiles. Cold-blooded animals which have scaly skins, like lizards, snakes, and turtles. CLASS IV. Batrachians. Cold-blooded animals which have naked skins, like frogs, toads, and newts.
Except for the occasional hooting of an owl, the night was profoundly still during several hours after dark the cicadas at this season not ascending so high on the mountain. A dense mist shrouded every thing, and the rain pattered on the leaves of our hut. Like many Batrachians, this has a voice singularly unlike that of any other organised creature.
Surely this species seeks the water at the time of fecundation, for so do all batrachians, the water being indeed a more fitting medium for fecundation than the air. . .It is certain that the eggs were already fecundated when we found them in the ground, for later, I found several not so far advanced as those you have, and yet after three weeks I had tadpoles from them.
It has many of the habits of that animal, living on worms and insects; indeed, it is difficult to say whether it should be classed with eels or batrachians. It is, however, a true amphibian, respiring either in the water by means of branchiae, or in the air by means of lungs. It approaches, in the structure of its head, to the salamanders, though much less so in its general form and proportions.
Distribution of fresh-water productions On the inhabitants of oceanic islands Absence of Batrachians and of terrestrial Mammals On the relation of the inhabitants of islands to those of the nearest mainland On colonisation from the nearest source with subsequent modification Summary of the last and present chapters.
These spirits are said to wander about at night, and whenever opportunity offers, they shoot invisible arrows into persons. These cause various internal troubles, such as consumption, hemorrhages, and diseases of the digestive organs. Mice, frogs, snakes, and tailed batrachians are said to cause much disease among women, and hence should be shunned, and on no account handled.
But M. Link conceived that some of the four species of animals of which the tracks had been found in Saxony might have been gigantic Batrachians, and when it was afterwards inferred that the Labyrinthodon was an air-breathing reptile, it was conjectured by Professor Owen that it might be one and the same as the Cheirotherium. Tooth of Thecodontosaurus; three times magnified. Riley and Stutchbury.
I speculate sometimes with complacency how many thousand of healthy and industrious batrachians I have reared and turned out for the benefit of my neighbours. Enough perhaps, but certainly no more, remain to serve me that I know because the slugs give very little trouble in spite of the most favourable circumstances.
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