"Six of us went under the wire, like an animal crawls underneath something, late on a dark night in August 1942," she said.
In some species, the sole lies flat on the substrate when the animal is crawling.
He finally concluded that the animal had crawled in there and died.
The three on the lower surface have numerous tube feet, often with suckers, that allow the animal to crawl along.
The frilly mantle sometimes appears to move like a wave as the animal crawls along.
"I was just preparing myself in case a wild' animal had crawled in here."
It offered tranquillity, a haven of peace into which a wounded wild animal could crawl to lick its wounds.
Not a single animal of any sort was crawling across the slightly soggy ground.
I thought an animal had crawled in there and died.
On the walls hung ropes and harness gear, but there were no windows an animal might crawl through.