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| 蚯蚓卵能不能冻死?% h- z) I- G& J! D/ [, s' W3 q知否 发表于 2011-1-16 21:21
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 1 J" Q- d, ~5 w9 @ If frozen, earthworms will die. They survive freezing temperatures by going below the frost line in winter to hibernate. Earthworm cocoons, however, are much more tolerant to freezing and worm eggs within a cocoon survive in the soil over winter to hatch in the spring when conditions are right.
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