The ‘eel hypothesis’ proposes that the anthrozoological phenomenon at Loch Ness in Scotland can be explained in part by observations of large-bodied specimens of European eel (Anguilla anguilla), as these creatures are most compatible with morphological, behavioral, and environmental considerations. In a new study, Folk Zoology Society researcher Floe Foxon analyzed data on the distribution of European eel masses in Loch Ness to estimate the probability of finding an eel of extraordinary size there. She found that giant European eels could not account for sightings of larger animals in the loch.
Loch Ness is a large oligotrophic freshwater loch located along the Great Glen Fault in Scotland.
Since the 1930s, purported sightings of unknown animals in the loch have featured prominently in popular media, but to date, no specimen has been obtained despite numerous efforts, making the probability of such animals unlikely.
The authenticity and interpretations of photographs and films allegedly depicting unknown animals in Loch Ness have been seriously doubted.
In the 20th century, systematic searches with submersibles, sector-scanning sonar surveys, hydrophones, underwater photography, long-lining, and trawling have returned only ambiguous sonar signals, low-quality photographs, and unidentifiable sound recordings.
In the 1970s, a sample of European eels was collected from Loch Ness with baited traps.
The distribution of eel masses was skewed, which led biologists to conclude that large eels may exist in the loch.
Eel body structure and function are characterized by an elongated body form, a single pair of pectoral fins, strong musculature and high-amplitude winding movement, and a durable integument with a thick epidermis and dark chromatophores.
An environmental DNA study conducted at the loch in 2018 detected extraordinary amounts of mitochondrial and nuclear DNA from eels, prompting authors to further suggest the possibility of large eels in the…
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