Outer Hebrides, July 16, 2023 — cyberinktimes.com —
Forty-two dead whales and a question that haunts marine science
NORTH TOLSTA, Outer Hebrides — The pod did not scatter. That is what makes this incident different from a simple navigation error. Forty-two pilot whales died on a single stretch of sand here.
Another twelve were shot by veterinarians after the tide refused to cooperate. This was not a random stranding.
This was a social collapse. Pilot whales belong to the genus Globicephala. They are among the largest oceanic dolphins — only the orca is longer.
They live in tight matrilineal groups. They hunt squid in deep water.
And when one member of the pod beaches itself, the rest often follow. It is not stupidity. It is loyalty, hardwired over millions of years.
The British Divers Marine Life Rescue team tried to refloat the survivors. Adverse conditions — wind, wave, the shape of the beach — made it impossible. After hours of effort, the decision was made.
Euthanasia. Twelve more whales dead by needle and bullet, because the alternative was a slower death on dry land.
No one knows why they came ashore. That is the honest answer. Two species exist: the long-finned pilot whale and the short-finned pilot whale.
At sea, they look nearly identical. Scientists need to examine the skulls to tell them apart.
Long-finned whales prefer cold water. Short-finned whales stay in tropical and subtropical zones. The Outer Hebrides sit squarely in the cold zone.
These were likely long-finned pilot whales, but that remains unconfirmed. What is confirmed is the pattern. Mass strandings of pilot whales happen repeatedly in Scotland, in New Zealand, in Tasmania.
The same genus. The same behavior.
The same outcome. Some researchers point to sonar. Naval exercises and seismic surveys produce low-frequency noise that can disorient deep-diving cetaceans.
Pilot whales hunt squid at depths where sound travels differently. A loud blast at the wrong moment could scramble their internal maps.
Others blame disease. A sick leader beaches herself. The pod follows.
The entire group dies. Still others argue that these strandings are natural — rare, but natural. Pilot whales have been stranding for millennia, long before humans invented sonar.
The fossil record shows it. The investigation in North Tolsta will try to sort through these possibilities.
Necropsies will be performed. Tissue samples will be tested for toxins. The whales’ ears will be examined for signs of acoustic trauma.
But answers do not come quickly, and sometimes they do not come at all. Pilot whales are called blackfish — a name that lumps them with other large dolphins.
They are not fish. They breathe air. They nurse their young.
They recognize each other’s calls across miles of ocean. And when one dies on a beach, the others do not leave. Forty-two bodies now lie on that beach in North Tolsta.
Twelve more were euthanised. The total is fifty-four whales dead from a single pod.
The Scottish government will likely order a full report. The data will enter a global database of stranding events. Scientists will compare this incident to others, looking for patterns that might explain why a healthy pod of pilot whales swims straight into death.
For now, there is only the beach, the bodies, and the unanswered question. The whales came ashore.
They died. And the ocean does not tell us why.
