Foxes and wolves. 
Kitty Cats!
Giant Anteaters
When I was a girl, there as a giant anteater at the Philadelphia Zoo that was kept in an enclosure that was a fence about three feet high. I reach over to pet it, and it put it’s head up and put its nose near my coat sleeve. It ran it’s tongue all the way up my arm till it tickles my armpit. I’ve been a fan ever since.
Plus they’re really cute.
Oh, I thought we were talking real animals. Well, dragons, too.
For D&D people: Faerie dragons, psuedodragons, bronze dragons, and silver dragons.
Real animals: Cats. Especially ocelots and snow leopards.
Mythical animals: Western dragons.
Horses. The Wonder Pony spent his 20th birfday (Monday) trying to buck me off.
Dogs, all dogs, especially the OES.
Monkeys, especially chimps. And elephants.
But the bestest are horses.
Hippos are awesome animals, but “cute” is not one of their noticeable traits. They are responsible for more human deaths a year then any other mamal, are very territorial, have a foul(down right vogon like) temper and enjoy using their head as a battering ram against small boats. So if you want a 1.5 ton guard dog on steroids - hippos are the way to go; for cuteness consider a panda or a dolphin.
My posable thumb is a poseur: right now it’s sitting in a cafe on the Left Bank in Paris, wearing a beret and black turtleneck, sipping Pernod and chain-smoking Gitanes, and gesticulating wildly while talking loudly about Sartre and Camus.
Sorry. Actually, it’s “opposable” thumb - because you can oppose it to the rest of your digits.
Hey, no one limited it to real animals!
Cows! Especially ones with big horns. And the shaggy ones from Scotland.
Tardigrades! They’re just so utterly cool.
Tardigrades have a neat trick of going into stasis when times get tough. When the environment dries up, they go into “tun” (like, wine cask) form. They stay that way until they come into contact with water again. They can stay in their protected static state for over a hundred years and go right back to normal with no trouble afterwards. (They can last a lot longer than 100 years in tun form, according to one guy I know. He claims to have seen 250- or 300 year-old tardigrades in tun form go back to merrily swimming around after hitting a droplet of water. He was helping to curate a bunch of Jamaican fern specimens collected during Jamaica’s early colonization, when some tiny white dot things fell off the leaves and landed on a droplet of water sitting on the lab bench. Upon examination with a microscope, the tiny white dot things turned out to be tardigrades in tun form, and they did indeed revive when dropped into water. Amazing.)
They can also withstand really low temperatures (up to 0.05K–no, I’m not making that up), some pretty high tempertures (150 C, IIRC), immense pressures(something like 1000 atm–I’m not making that up, either) and absurdly high doses of X-ray radiation when in tun form.
They’re really kind of cute when seen under a scope, besides. And they have these outlandish, science-fiction-ey claws on each of their eight tiny feet. And they’re all around us! Got an old fencepost outside? Well, unless you live in a bone-dry desert, you’ve got tardigrades. What’s not to love?
Oh yeah, Mini Herefords are a cool kind of cow too. And that mini donkey was so cute! I love farm animals.
