Level of Rarity
Decomposition may separate the foot from the body because the ankle is relatively weak, and the buoyancy caused by air either inside or trapped within a shoe would allow it to float away. According to SFU entomologist Gail Anderson, extremities such as the hands, feet, and head often detach as a body decomposes in the water, although they rarely float.
However, finding feet and not the rest of the bodies has been deemed unusual. Finding two feet has been given a "million to one odds" and has thus been described as "an anomaly". The finding of the third foot made it the first time three such discoveries had been made so close to each other. The fourth discovery caused speculation about human interference and, statistically, was called "curious".
Read more about this topic: Salish Sea Human Foot Discoveries
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