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Some male birds and mammals congregate in communal courting grounds called leks.
Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
The upper intake manifold, often called a plenum, attaches to the lower intake manifold.