Sponges grow on rocks, and feed upon shell- and other fish, and slime. It would appear that these creatures, too, have some intelligence; for as soon as they feel the hand about to tear them off, they contract themselves, and are separated with much greater difficulty: they do the same also when the waves buffet9 them to and fro. About Torone it is said that they will survive after they have been detached, and that they 165 grow again from the roots which have been left adhering to the rock. They leave a color like blood upon the rock from which they have been detached, especially those which are produced in the Syrtes of Africa.
The manos is the one that grows to the largest size, but the softest of all are those found in the vicinity of Lycia. Where the sea is deep and calm, they are more particularly soft, while those which are found in the Hellespont are rough, and those in the vicinity of Malea coarse. When lying in places exposed to the sun, they become putrid10: hence those which are found in deep water are the best. While they are alive, they are of the same blackish color that they are when saturated11 with water. They adhere to the rock not by one part only, nor yet by the whole body: and within them there are a number of empty tubes, generally four or five in number, by means of which, it is thought, they take their food. There are other tubes also, but these are closed at the upper extremity12; and a sort of membrane13 is supposed to be spread beneath the roots by which they adhere. It is well known that sponges are very long-lived.

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1
nettle
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n.荨麻;v.烦忧,激恼 | |
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2
nurtured
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养育( nurture的过去式和过去分词 ); 培育; 滋长; 助长 | |
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3
prey
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n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨 | |
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4
stiffens
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(使)变硬,(使)强硬( stiffen的第三人称单数 ) | |
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5
devour
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v.吞没;贪婪地注视或谛听,贪读;使着迷 | |
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6
withered
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adj. 枯萎的,干瘪的,(人身体的部分器官)因病萎缩的或未发育良好的 动词wither的过去式和过去分词形式 | |
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7
itching
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adj.贪得的,痒的,渴望的v.发痒( itch的现在分词 ) | |
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8
pounces
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v.突然袭击( pounce的第三人称单数 );猛扑;一眼看出;抓住机会(进行抨击) | |
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9
buffet
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n.自助餐;饮食柜台;餐台 | |
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10
putrid
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adj.腐臭的;有毒的;已腐烂的;卑劣的 | |
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11
saturated
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a.饱和的,充满的 | |
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12
extremity
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n.末端,尽头;尽力;终极;极度 | |
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13
membrane
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n.薄膜,膜皮,羊皮纸 | |
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