Pet keeping generated a commercial opportunity for entrepreneurs. By the mid-nineteenth century, nearly twenty thousand street vendors in London dealt with live animals. Also, the popularity of animals developed a demand for animal goods such as accessories and guides for pet keeping. Pet care developed into a big business by the Pets News end of the nineteenth century. Ancient Greeks and Romans would openly grieve for the loss of a dog, evidenced by inscriptions left on tombstones commemorating their loss. The surviving epitaphs dedicated to horses are more likely to reference a gratitude for the companionship that had come from war horses rather than race horses.
However, such findings have not been consistent as other studies reported zero or even negative effects of pet ownership on physical and mental health. Depending on animal breed and size, they can travel as a carry-on or be transported through American Airlines Cargo. Carry-on …