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Experts puzzled after 'incredibly rare' creature washes up on beach: 'Something we clearly hadn't seen before'

"The discovery highlights ... the enduring mysteries of the deep ocean." Experts puzzled after 'incredibly rare' creature ...

Huge 14ft sea creature that's rarely seen washes up on beach

The massive megamouth shark is one of just 273 that have been identified since the species was first discovered, making it one of the rarest sharks on Earth ...