The cloaca, also known as the vent, is a shared chamber in sharks where the intestines, urinary tract, and reproductive organs meet. It's like a one-stop shop for waste disposal and reproduction. For waste, everything from digested food to metabolic by-products exits through the cloaca. During mating, male sharks transfer sperm into the female's cloaca for fertilisation. Then, when it's time, females lay eggs or give birth through the same opening. Basically, the cloaca is a crucial hub for both
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The cloaca, also known as the vent, is a shared chamber in sharks wh…
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FacebookShark Guardian
We captured this incredible moment: a pelagic thresher shark (Alopias pelagicus) rubbing its cloaca against coral during a recent dive! 🦈 Don’t worry, it’s not mating—it’s a natural grooming behavior where these sharks use rough coral surfaces to scrape off parasites like copepods, dead skin, and irritants from their sensitive genital area. Known for their iconic long, whip-like tails, threshers in Malapascua’s reefs perform this self-cleaning ritual to maintain healthy skin, gills, and cloaca
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