Juvenile great whites 'too weak' to stalk big mammals

"Even though the adolescents may have reached a length of around 10ft, they struggle to deal with larger prey because their jaw bones are too soft.
Scientists in Australia found that because the fish grow so quickly the cartilage takes a long time to harden.
That means until they reach maturity at around 15 years old they have to make do with a diet of small fish rather than their traditional larger prey."
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