Sharks and Rays quiz
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Why do stingrays have a tail spine?
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More questions about Sharks and Rays
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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What makes great white sharks abandon their hunting grounds?
Answer: Orca
Why: At California's Farallon Islands, great whites left whenever orcas showed up and stayed away until the next season.
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What do great hammerheads pin to the seabed with their heads?
Answer: Stingrays
Why: Stingray spines don't seem to stop them: one great hammerhead caught off Florida had 96 spines in and around its mouth.
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When did megalodon die out?
Answer: About 3.6 million years ago
Why: Dinosaurs other than birds died out about 66 million years ago, long before megalodon even appeared.
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Which sharks can glow?
Answer: Lanternsharks
Why: Their glowing bellies match the faint light from above, which hides their outline from animals looking up.
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What do the fins add to shark fin soup?
Answer: Texture
Why: Most of the fin in the bowl is ceratotrichia, collagen fibers from inside the fin that break down into a fibrous mass.
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How long does a spiny dogfish pregnancy last?
Answer: 18 to 24 months
Why: With pregnancies that long, a female gives birth only every two years, to about six live pups on average.
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