Humpback whales set new record for longest migration in search of breeding grounds

Whales’ Romantic Adventures

Humpback whales have left scientists astonished with their epic journey spanning three oceans and over 8,000 miles, establishing a new record for the longest migration between breeding grounds.

A recent study published in a journal Royal Society Open Science on Wednesday suggests that this remarkable migration may be influenced by climate change, impacting ocean conditions and food availability, or changes in mating behavior.

Professor Darren Croft, an expert in behavioral ecology at the University of Exeter, UK, remarked, “Changes in climate and ocean conditions may drive these migrations to new breeding grounds, and increased competition for mates and food may prompt individuals to seek new opportunities.”

This new study reveals the immense distances traveled by humpback whales and highlights their remarkable migratory behavior.

While some whale species cover over 5,000 miles between feeding and breeding areas, humpback whales hold the title for the longest migratory distance among mammals.

One particular whale captured scientists’ attention after embarking on a journey that extended beyond the usual migratory routes.

Originally spotted in 2013 off the coast of Colombia, South America, the whale was later sighted in similar waters in 2017 and in 2022 near Zanzibar, an island in the Indian Ocean.

Researcher Ryan Reisinger expressed his excitement over the findings, underscoring the importance of documenting humpback whales’ shifting breeding grounds.

Despite this intriguing discovery, the exact reason for this unusually long migration remains unknown.

Humpback whales are renowned for their annual migration from rich feeding grounds in the summer to warmer breeding areas in winter, where food is scarce.

The study employed photos from happywhale.com, a platform where individuals contribute to tracking whale movements globally, utilizing artificial intelligence to identify and study individual whales based on their unique features.

With a match rate of 97% to 99%, the algorithm on Happy Whale’s website utilizes whale tail characteristics to differentiate and monitor humpback whale populations around the world.

Source: www.nbcnews.com

Stunning, enduring pictures reveal Kazakhstan’s abandoned nuclear testing grounds

Ruins of the observation tower of Opitnoe pole

Eddo Hartmann, Netherlands, Finalist, Professional Competition, Landscape, Sony World Photography Awards 2024

These photos, all shortlisted for the 2024 Sony World Photography Awards, get to the heart of human vulnerability and the fragility of nature.

Eddo Hartmann was selected as a finalist in the Landscape category for his series. sacrifice zoneA remote area in Kazakhstan that was the main Soviet nuclear testing site from 1949 to 1989.

The image above shows a dosimeter measuring radiation levels at Lake Shagan in Kazakhstan. The area remains highly contaminated from around 450 nuclear tests conducted there. The featured photo (above) shows the remains of an observation tower at Russia's Opitnoye Pole, another area used for Soviet nuclear tests.

Hartmann photographed these landscapes using infrared light, whose red tint was reminiscent of radioactive contamination that is invisible to the naked eye. “Local scientists are using infrared technology to monitor the current status of contaminated sites,” he says. “Chlorophyll found in green plants reflects significant amounts of infrared radiation. The different shades of reflection provide valuable insight into the overall environmental health of a given area.”

Jonas Kako, finalist, professional competition, environment, Sony WPA 2024

In the Albanian village of Zales, a girl climbs onto an old oil tank (pictured above). This image, taken by Jonas Kakó, was shortlisted in the Environment category. The photo below was taken by wildlife and nature finalist Jasper Dost of an elephant charging through Livingstone, Zambia.

Jasper Dost, Finalist, Professional Contest, Wildlife and Wildlife Nature, Sony WPA 2024

The winner of the competition will be announced on April 18th, before the exhibition opens at Somerset House, London, from April 19th to May 6th.

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Source: www.newscientist.com