The sea lamprey (Petromyzon marinus) is an ancient jawless fish that has survived for over 340 million years, including four mass extinction events. It possesses over 100 razor-sharp teeth in a circular mouth and a rasping tongue that bores through fish scales and flesh. Its saliva contains anticoagulants that prevent blood clotting, causing wounds to remain open and preventing healing. Only 1 in 7 fish survives an attack. When sea lampreys invaded the Great Lakes, they caused catastrophic ecological damage, reducing the annual lake trout harvest from 15 million pounds to just 300,000 pounds, demonstrating how invasive species can devastate ecosystems lacking evolutionary defenses.
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"This Ancient Parasite Has 100+ Teeth, Only 1 in 7 of Its Victims Survive" #marinemysteryAdded:
Older than dinosaurs, it doesn't kill you on purpose. Death is just [music] a side effect. This creature has been on Earth for over 340 million years. It survived four mass extinction events. The sea lamprey, no jaw, no bone. Its skeleton is pure cartilage.
>> [music] >> Inside that circular mouth are over 100 razor-sharp teeth in rings surrounding a rasping tongue that bores through scales, [music] flesh, and into the body of its host. Its saliva releases an anticoagulant. The wound cannot close, cannot [music] clot, cannot heal. Only one in seven fish survives an attack.
When they invaded [music] the Great Lakes, where fish had no evolutionary defense against them, they collapsed the entire fisheries. The US and Canada once pulled 15 million pounds of lake trout a year from those waters. After the lamprey arrived, just 300,000 pounds. A single lamprey destroys up to 40 pounds of fish in one feeding cycle.
They're not even trying to kill. [music] Death is just a side effect. It survived the dinosaurs. It survived every catastrophe [music] this planet has thrown at it, and it is still here, still feeding, still unchanged. What [music] else is hiding in the ocean? Subscribe and drop a comment.
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