Vocabulary
1. cryptic Òþ²ØµÄ£¬±£»¤µÄ
cryptic coloring ±£»¤É«£¬Òþ²ØÉ«
2. predaceous ʳÈâµÄ£¬²¶Ê³ÆäËû¶¯ÎïµÄ¡£
3. vertebrate ¼¹×µ¶¯ÎïÃÅ
4. tint É«Ôó£¬É«²Ê
5. zebra °ßÂí
6. Sargasso ¹û±¾ÂíβÔå
7. twig ÄÛÖ¦
8. lichen µØÒÂ
9. flake һƬ
10. gradation µÈ¼¶£¬²ã´Î£¬·ÖµÈ
11. obliterate ͿĨ£¬²ÁÈ¥£¬Ê¹Ïûʧ
12. larva Ó׳棬Ó×Ìå
13. pupa Ó¼
14. mimicry Ä£·Â£¬Äâ̬
15. nocturnal Ò¹¼ä·¢ÉúµÄ£¬Ò¹³öµÄ
16. insectivorous ʳ³æµÄ
17. procryptic Óб£»¤É«µÄ£¬±£»¤ÐÔµÄ
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1. ¡the rapidity of movement which is also made use of by both pursuer and pursued, which is similarly raised to a maximum in both by the gradual dying out of the slowest through a series of generations.
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2. Protective resemblance is far commoner among animals than aggressive resemblance, in correspondence with the fact that predaceous forms are as a rule much larger and much less numerous than their prey.
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3. The effect of a uniform appearance may be produced by a combination of tints in startling contrast.
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4. ¡their proportion is such as exactly to match the pale tint which arid ground possesses when seen by moonlight.
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5. In these environments the cryptic coloring of animals is usually aided by special modifications of shape, and by the instinct which leads them to assume particular attitudes.
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6. Complete stillness and the assumption of a certain attitude play an essential part in general resemblance on land; but in special resemblance the attitude is often highly specialized¡
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7. Thus the arrangement of colors of many kinds into an appropriate pattern requires the cooperation of a suitable shape and the rigidly exact adoption of a certain elaborate attitude.
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8. The cryptic effect is due to the exact cooperation of all these factors; and in the present state of science, the only possible hole of an interpretation lies in the theory of natural selection, which can accumulate any and every variation which tends toward survival.
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