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The platypus is very difficult to spot even on the surface of a river.
Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
In this painting evangelist George Whitefield appears to be cross-eyed. This is no fault of John Wol
Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ...
Some ignition coils are electrically connected, called married (top figure), whereas others use ...