Whippet

Built like a living arrow, the Whippet is proof that speed and gentleness can absolutely coexist in one dog. Developed in England in the late 1700s and 1800s by crossing Greyhounds with terriers, Whippets were originally bred for coursing hares and, later, for informal racing among working-class communities — earning them the affectionate nickname “the poor man’s racehorse.” Essentially a miniature Greyhound in build, the Whippet can hit speeds of up to 37 mph (60 km/h) and accelerate to top speed almost instantly, making it one of the fastest accelerating breeds of dog in the world. But flip the switch off, and you get a completely different dog: calm, affectionate, and famously happy to spend the entire day curled up on the couch. Whippets are gentle with people, playful with children, and generally easygoing with other dogs, and their trusting, non-confrontational nature means they make poor guard dogs but wonderful companions. The AKC recognized the breed in 1888, and it arrived in the U.S. largely through English mill workers who brought their dogs with them. Whippets thrive with regular opportunities to sprint — a securely fenced yard or a proper off-leash run does wonders — balanced with plenty of cozy downtime. Their short coat and lean build mean they run cold, so a jumper for chilly walks is often a must.