https://www.goodhousekeeping.com/life/pets/advice/g1737/largest-dog-breeds/*
Dogs are animals that have been domesticated and popularly known as man’s best friend because of its loyalty. They come in different sizes belonging to many breeds with varying coat type and character. Historically, dogs have been integral in fulfilling many roles including hunting, herding, and a loyal friend. With their fine smelling skills and very good sense of hearing they make excellent search and rescue dogs and great detecting dog breeds. Many people know dogs as intelligent animals and they are able to perform several roles like performing some basic duties, other complicated tricks, etc. Apart from their functional purposes, dogs contribute immensely into human lives by showing the love they possess in their hearts that gives one comfort and the will to live.