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Some male birds and mammals congregate in communal courting grounds called leks.
Dish from Ecuador called "Cuy"
Body cavities. (A) Lateral view of a sagittal section through the body. (B) Anterior view of a front
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
In this design, the fuel injector is at the top of the cylinder and sprays fuel into the cavity of ...