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One of the biggest danger is us humans. in the early 1900s humans killed sperm whales with harpoons because the sperm whale has a HUGE amount of oil in its head along with other whales but the sperm whale has the largest amount of oil, the sperm whale was protected in the 1960s. The killer whale is also a big threat to the baby sperm, when the mother leaves to take a deep dive in the blackness to eat squid it leaves its venerable baby behind at the surface and the killers take advantage to that.

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14y ago

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