Comments on: Spotlight On… http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298 Educational programs, games and more Thu, 17 Jan 2013 22:02:40 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: nature http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298&cpage=1#comment-433 nature Sun, 23 Oct 2011 23:28:40 +0000 http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298#comment-433 This week was a hard one! The specimen was actually an egg case from a horn shark (Heterodontus francisci). Different types of sharks have different ways of reproducing. Some sharks are oviparous, meaning they lay eggs. Others are ovoviviparous, meaning the embryos develop inside the female in eggs. They hatch inside the mother and then come out alive. Finally, some are viviparous, meaning they give birth to live young. To learn more about shark reproduction, check out this website:

For more facts, videos and pictures of horn sharks, check out these websites:

We’ll have another “Spotlight On” soon, but in the meantime, see if you can tell us who pooped.

]]> By: Alyssa http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298&cpage=1#comment-431 Alyssa Sun, 23 Oct 2011 17:43:46 +0000 http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298#comment-431 Is it sea weed or some kind of hydrophyte?

]]> By: Daniel http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298&cpage=1#comment-428 Daniel Sat, 22 Oct 2011 04:40:12 +0000 http://www.calacademy.org/academy/exhibits/naturalist_center/nnotebook/?p=2298#comment-428 Is this a type of bat? I’m really not sure. The close-up stumped me pretty good. Haha.

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