Scientists say 90% of the world's open-ocean sharks died off in mystery extinction event 19 million years ago
About 19 million years ago, roughly 90% of the world's open-ocean sharks died off, and scientists don't know why.
The recent discovery left researchers stunned, unable to explain the immense loss or the reason behind the deaths of one of the ocean's most powerful predators.
It began when scientist Elizabeth Sibert and her team were trying to learn more about the fish and shark abundance over the last 80 million years, according to a study released on June 3.
Scientists say 90% of the world's open-ocean sharks died off in mystery extinction event 19 million years ago - CNN
About 19 million years ago, roughly 90% of the world's open-ocean sharks died off, and scientists don't know why.
The recent discovery left researchers stunned, unable to explain the immense loss or the reason behind the deaths of one of the ocean's most powerful predators.
It began when scientist Elizabeth Sibert and her team were trying to learn more about the fish and shark abundance over the last 80 million years, according to a study released on June 3.
Scientists say 90% of the world's open-ocean sharks died off in mystery extinction event 19 million years ago - CNN