Labradors are powerful and indefatigable swimmers noted for their ability to tolerate the coldest of water for extended periods of time. Their ability to work quietly alongside hunters while watching for birds to fall from the sky, marking where they land, and then using their outstanding nose to find and retrieve dead or wounded birds has made them the king of waterfowl retrievers.[57] They are also used for pointing and flushing and make excellent upland game hunting partners.[58]


It has been shown that out of all dog breeds, it is the Labrador Retriever that is most likely to be obese.[73] In a 2016 published study it was shown that out of 310 Labradors, most were missing all or parts of the POMC gene. This gene plays a part in appetite regulation as well as indication of the amount of one's stored fat. The study concluded that the absence of that gene had a significant impact on Labrador weight and appetite.[70][73] The POMC gene mutation is present in only one other breed – the Flat-Coated Retriever.[70] 
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