The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Glaucus/The Wonders of the Shore by Charles Kingsley:|
animals who swim or creep around.
Mystery of mysteries! Let us jest no more, - Heaven forgive us if
we have jested too much on so simple a matter as that poor spider-
crab, taken out of the lobster-pots, and left to die at the bottom
of the boat, because his more aristocratic cousins of the blue and
purple armour will not enter the trap while he is within.
I am not aware whether the surmise, that these tiny zoophytes help
to purify the water by exhaling oxygen gas, has yet been verified.
The infusorial animalcules do so, reversing the functions of animal
life, and instead of evolving carbonic acid gas, as other animals
do, evolve pure oxygen. So, at least, says Liebig, who states that