Naturally Occurring Gels in The Animal Kingdom
Some species secrete gels that are effective in parasite control. For example, the long-finned pilot whale secretes an enzymatic gel that rests on the outer surface of this animal and helps prevent other organisms from establishing colonies on the surface of these whales' bodies.
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Famous quotes containing the words naturally, animal and/or kingdom:
“In a pure society, the subject of marriage would not be so often avoided,—from shame and not from reverence, winked out of sight, and hinted at only; but treated naturally and simply,—perhaps simply avoided like the kindred mysteries. If it cannot be spoken of for shame, how can it be acted of? But, doubtless, there is far more purity, as well as more impurity, than is apparent.”
—Henry David Thoreau (1817–1862)
“... found myself
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—Denise Levertov (b. 1923)
“The kingdom of man over nature, which cometh not with observation,—a dominion such as now is beyond his dream of God,—he shall enter without more wonder than the blind man feels who is gradually restored to perfect sight.”
—Ralph Waldo Emerson (1803–1882)