
There’s so much variation between dogs that it can sometimes be hard to believe that some breeds – particularly the smallest and largest dog breeds – are part of the same species.
And now, showing just how different two members of the same species can be are Pearl and Reggie, respectively the shortest and tallest living dogs – a Chihuahua and Great Dane per the Guinness World Records. They met up for the first time in Idaho last month, and despite the contrast in size, they seemed to get on well.