A highly pathogenic H5N1 avian influenza strain has caused one of the largest wildlife die-offs linked to bird flu, killing over 13,000 southern elephant seal pups (approximately 76% of the annual population) on Australia's Heard Island, demonstrating how viruses can cross species barriers and spread through interconnected wildlife systems, particularly in dense colony environments where close contact facilitates transmission.
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Bird Flu: Thousands of Baby Seals Died On Two Remote Sub-Antarctic Islands | WION News
Added:A remote island in Southern Ocean, untouched and isolated for generations, has become the center of a new wildlife crisis. A virus that once spread mainly among birds has now crossed into a new environment, and now thousands of seal pups have become victims of a changing disease landscape. Here's a report on it. Take a look.
>> [music] >> Fearsomely wild, uninhabited by humans, and surrounded by the freezing waters of the Southern Ocean, Australia's World Heritage listed Heard Island is a pristine paradise.
Located 4,000 [music] km southwest of Perth, this sub-Antarctic volcanic outcrop has long served as a safe haven for over 1 million breeding seabirds and marine mammals.
>> [music] >> It is a landscape defined by extreme [music] isolation, where nature has thrived undisturbed for millennia.
But when researchers [music] from the Australian Antarctic Program stepped onto the gray volcanic beaches, the pristine silence was broken by a scene of absolute devastation.
This remote ecosystem has witnessed [music] one of the largest wildlife losses linked to bird flu.
>> [music] >> More than 13,000 southern elephant seal pups have died after a highly pathogenic [music] strain of avian influenza spread through the colony.
The virus behind the outbreak is [music] H5N1, a strain that has caused major outbreaks among wild birds and poultry around the world.
But scientists are now watching [music] a different concern. The virus is showing its ability to jump between species.
>> [music] >> The movement of viruses between animals is not [music] new.
Many viruses naturally circulate in wildlife, but when a virus crosses from one species into another, scientists pay close attention [music] because new hosts can create new opportunities for spread and adaptation.
In this case, [music] researchers believe the virus reached marine mammals after circulating among infected birds.
The seals, especially vulnerable young pups gathered in large colonies, became [music] exposed in an environment where close contact helped transmission.
Southern elephant seals are among the largest seals on Earth.
They travel vast distances through the oceans, making their health important not only for one island, but for understanding how diseases can move through marine ecosystems.
Scientists [music] say the outbreak is a warning sign, but not a reason for panic.
There is currently no evidence [music] suggesting this event represents a widespread threat to humans.
Instead, it highlights [music] how interconnected wildlife systems have become.
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