By: Sian Hewitt
Astonishing footage shows the three predators - each around 15 to 20 foot long - swimming in unison off the coast of Donegal Bay in Ireland


Sian Hewitt is a Deputy Editor at @reNews_, the UK's leading renewable energy publication. With a focus on areas such as animals, culture and society, and real estate, she explores a variety of topics including pets, veterinary care, and public policy. Sian's work has been featured in notable outlets including the Evening Standard, Yahoo News UK, and The Mirror.
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