A family of sharks commonly known as houndsharks or dogfish sharks, found in oceans worldwide.
From Latin/Greek 'galea' (helmet) plus the scientific family suffix '-idae.' The name references the sharks' helmet-like head structure that ancient observers noticed.
These sharks are the most successful predators in the ocean by sheer numbers, yet most people have never heard of them—they're the ninja ninjas of the sea!
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