10 Fascinating Facts About Sharks You May Not Know

swift Summary

• Greenland Sharks: Blindness in adulthood due to parasitic crustaceans affecting their eyes; rely on strong sense of smell. [1]
• Swell Sharks: Unique defense mechanism involves doubling body size by swallowing water, lodging them securely in rocky crevices. [2]
• Megalodon extinction: Great whites may have contributed to teh extinction of megalodon sharks via competition for food. Cooling oceans also played a role. [3]
• Shark Eggs: some species lay spiral-shaped eggs that can be anchored into rocks or seaweed to prevent being washed away. [4]
• Cookiecutter Sharks: Known for distinctive circular bites; these small sharks have damaged submarines adn prey on larger marine animals using suction and rotational biting techniques. [5]
• Sharks’ Skeletons: Composed entirely of cartilage, enabling faster swimming and less rigid biting mechanisms compared to bony fish. Calcium salts from diet strengthen critical areas like jaws and spine.[6]
• Stomach Eversion: Certain sharks vomit their stomachs out of their mouths to rinse them, expelling indigestible materials or as a stress response when fleeing threats.[7]

– Shark Dermal Denticles tiny skin sharpened facilitate resistance ,on tal req burst phenomenon

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