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6. Sharks have no bones in their body. Shark skeletons are made of cartilage.
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7. The skin of a female blue shark is almost twice as thick as the male’s. This is most likely to protect her during the blue shark’s vicious mating process.
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8. The spiny dogfish is one of the longest living sharks, reaching between 70-100 years.
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9. The whale shark’s mouth can be 6.5 feet wide. Yet the whale shark eats mostly tiny plankton.
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10. Sharks have the capacity to learn trained behaviours. In an aquarium setting, sharks have been conditioned to respond to coloured targets to receive food.
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