Science
Wide-eyed prehistoric shark hid its sharpest teeth in nightmare jaws – Livescience.com
This predator’s toothy grin came with a horrific twist.
Imagine you’re a fish swimming through the ocean millions of years ago, when a shark lunges at you, gaping its mouth to bite. The horror of your predicament increases as the predator’s lower jaw also stretches downward on both sides, so that newer, sharper teeth that were previously lying flat along the side of the jaw now curve up.
Scientists recently discovered this nightmarish trait in a fossil of a 370 million-year-old shark that once inhabited waters near what is now Morocco. The previously…
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