Here is the moment four whales swim side by side off the west coast of Ireland in spectacular footage filmed recently.
The video was recorded from a drone by the Irish Whale and Dolphin group on a research trip.
The group are aiming to gather data for a project called 'Whale Track Ireland'.
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The project was established in order to determine what whales are doing in Irish waters, where they come from and where they are going.
Samples will be taken to explore the whales' diets, their origins and the effect pollution has had on them.
The project is being funded by Ryanair customers, and drones will be used as part of the process.
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Sean O'Callaghan, Science Officer from the Irish Whale and Dolphin group told RTE: "On this trip we connected with up to six humpback whales feeding and socialising in offshore waters.
"This allowed us to collect the first set of aerial images and video that will be used to estimate the length and body condition of these iconic giants.
"In the footage you can see four individuals interacting with one another while common dolphins actively bowride these behemoths.
"Whale Track Ireland is essential to help the recovery and management of this charismatic species, which is an ambassador for marine conservation."
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