sentences:  In the middle of the 17th century, John Tradescant the elder created a wunderkammer (called Tradescant's Ark) in which he displayed, among other things, a "mermaid's hand".The topic of mermaids in earnest has arisen in several instances of scientific scrutiny, including a biological assessment of the unlikelihood of the supposed evolutionary biology of the mermaid on the popular marine science website, "DeepSeaNews".Five of the primary reasons listed as to why mermaids don't fit current evolutionary understanding are