A 16-year-old girl killed in a shark attack was swimming in a river, not the ocean. Bull sharks &mdash; considered by some experts the most dangerous &mdash; are the rare species that swims in fresh water.

(February 07 11:01) Businessinsider.sg

Stella Berry was attacked by what officials believe was a bull shark, which have been recorded swimming up the Mississippi River as far as Illinois.

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A 16-year-old girl killed in a shark attack was swimming in a river, not the ocean. Bull sharks &amp;mdash; considered by some experts the most dangerous &amp;mdash; are the rare species that swims in fresh water.