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Record Distances Travelled By Humpback Whales

23rd May 2026
“Tail
Tail Trail – Scientists identified record-distance humpback whale journeys by matching the unique underside patterns of whale flukes photographed in Brazil and Australia Credit: Pacific Whale Foundation

Two humpback whales may have broken records on swims between east Australia and Brazil, scientists say.

As RTÉ News and The Guardian report, a team of international scientists studied tens of thousands of images taken of whale flukes to identify the two mammals.

The photographs were submitted to a shared platform, Happywhale, which scientists and citizen scientists can contribute to.

One  humpback was spotted in Queensland in 2007 and then appeared near Sao Paulo, Brazil, in 2019 - a distance across oceans of 14,200km.

Another humpback was seen off the coast off Bahia in Brazil before being sighted some 22 years later in Hervey Bay, Australia 15,100km away.

The pictures in each case suggest that these are the longest distances travelled by the same humpback.

The Guardian quotes Stephanie Stack, a PhD candidate at Griffith University and co-author of new research which has been published in the journal Royal Society Open Science.

Stack said it was “extraordinary to photograph a whale that’s gone this distance – it has never happened before”.

Read The Guardian here

Read RTÉ News here

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Marine Wildlife Around Ireland One of the greatest memories of any day spent boating around the Irish coast is an encounter with marine wildlife.  It's a thrill for young and old to witness seabirds, seals, dolphins and whales right there in their own habitat. As boaters fortunate enough to have experienced it will testify even spotting a distant dorsal fin can be the highlight of any day afloat.  Was that a porpoise? Was it a whale? No matter how brief the glimpse it's a privilege to share the seas with Irish marine wildlife.

Thanks to the location of our beautiful little island, perched in the North Atlantic Ocean there appears to be no shortage of marine life to observe.

From whales to dolphins, seals, sharks and other ocean animals this page documents the most interesting accounts of marine wildlife around our shores. We're keen to receive your observations, your photos, links and youtube clips.

Boaters have a unique perspective and all those who go afloat, from inshore kayaking to offshore yacht racing that what they encounter can be of real value to specialist organisations such as the Irish Whale and Dolphin Group (IWDG) who compile a list of sightings and strandings. The IWDG knowledge base has increased over the past 21 years thanks in part at least to the observations of sailors, anglers, kayakers and boaters.

Thanks to the IWDG work we now know we share the seas with dozens of species who also call Ireland home. Here's the current list: Atlantic white-sided dolphin, beluga whale, blue whale, bottlenose dolphin, common dolphin, Cuvier's beaked whale, false killer whale, fin whale, Gervais' beaked whale, harbour porpoise, humpback whale, killer whale, minke whale, northern bottlenose whale, northern right whale, pilot whale, pygmy sperm whale, Risso's dolphin, sei whale, Sowerby's beaked whale, sperm whale, striped dolphin, True's beaked whale and white-beaked dolphin.

But as impressive as the species list is the IWDG believe there are still gaps in our knowledge. Next time you are out on the ocean waves keep a sharp look out!