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flag Researchers discover ghost sharks have tooth-like structures on their foreheads to aid in mating.

flag Researchers found that ghost sharks, or chimaeras, grow specialized teeth on a forehead appendage called the tenaculum to help grasp females during mating. flag These teeth are genetically similar to those in the mouth, not to shark skin denticles, showing evolution's adaptability in repurposing structures. flag The study, using CT scans and genetic analysis, highlights the ocean's hidden biodiversity.

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