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egg case |
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egg case [′eg ‚kās] (invertebrate zoology) A protective capsule containing the eggs of certain insects and mollusks. Also known as egg capsule. A silk pouch in which certain spiders carry their eggs. Also known as egg sac. (vertebrate zoology) A soft, gelatinous (amphibians) or strong, horny (skates) envelope containing the egg of certain vertebrates. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Fascinating views of a shark emerging from an egg case and the live birth of a shark accompany discussion of the three ways fertilized shark eggs develop. Aprostocetus hagenowii drills a hole in the cockroach's egg case and deposits its own eggs there, explains Lynn M. The eggs that Mantie laid that December never hatched, but we found another egg case in the winter, and it hatched this past spring. |
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