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Originally posted by madehtsobi View PostCool!
I thought sharks gave birth to live young?
1) Free swimming Sharks (ex: Blacktip Reef Sharks, Lemon Sharks, etc.)
2) Bottom-dwelling Sharks (ex: Nurse Sharks, Bamboo Sharks, etc.)
Free swimming sharks are always on the move, 24/7, because they have to keep water constantly running over their gills to breathe. Bottom-dwelling sharks, on the other hand, have full control over the muscles in their gills and can pump water across their gills without swimming. This is why you can often see nurse sharks laying around on the bottom while blacktips are always swimming around.
Free swimming sharks give birth to live young, because the babies too must constantly be moving in order to breathe, thus meaning they could not sit still in an egg during their development.
Bottom dwelling sharks lay eggs, usually along the coast in the shallows, in kelp fields or attached to seaweed. Because they can breathe without the need to swim, development in an egg in possible.
If you watch some of my most recent videos, you can actually see the baby shark in the egg pumping water through its newly formed gills.
I believe that should answer your question
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Originally posted by Mrs. Mermaid View PostI saw that.... Has it hatched yet?
Here's an update:
The yolk is finally starting to shrink and the shark is growing daily
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