They say that friends come in all shapes and sizes. Well, if you take a look at the adorable friends in this video, then you’ll see just how true that statement is. Osiris is a Dutch Shepherd who spends his days working as a therapy dog, and his BFF is Riff the rat. Some people might think that these two animals have little in common, but that really couldn’t be farther from the truth.

Like dogs, rats can learn tricks and they even respond to their names. They also LOVE snuggling with their hoomans and enjoy snacking on everything from pasta to fancy salads. As you can see in this video, another thing that rats love is playtime. Riff and Osiris love nothing more than spending the day together – their connection is so strong it looks like even their kitty sibling is jealous! To add more cute into the equation, all three are joined by Millhouse a nine-month-old rat.

These animals might make for an unlikely friendship, but one thing is for sure – they’re adorable! To read the entire story of Riff and Osiris, click here. To keep up with their adorable antics, check out their Instagram.