I always wondering about reproduction of sharks. Now I do have an answer with this video:
https://www.youtube.com/watch?v=7X4PW092M38
They are more evolved than I thought. There are diversity in their mode of births. I was surprised by the part where the female can store sperms for a long time and that baby sharks can attack each other in their mon's womb. In this case, it is really the survival of the oldest!
I would like to see something on the topic of sex and reproduction of shark. I think it should be made in some shark special as the shark week on discovery (http://www.discovery.com/tv-shows/shark-week/). I would look for that, for sure. Would also like to know about diseases and death of shark (beside killing by Man). I seens to have miss the part with the birthing of shark when it came out during shark week.
To think about marine wildlife is a good idea in summer.
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