Is there such animal that’s called ‘joy’?

Lol! It's a little joke. That's a dog! No dogs are not typically called joy, but they are sources of joy. 🐶

dog but it’s a joke

This is obviously a joke t-shirt. Many of these animals aren't woodland creatures. So you'd expect a dog to be called joy, as most people consider dogs a source of joy.

Might be a misspelling 'joey' since that what baby marsupials, such as kangaroos are called

It's got dog paw prints, it's a joke. Dogs bring joy to people :)

That a dog

Kamala's failed campaign.

I think it means that cats make them happy. Some people refer to cats/dogs as their joy so perhaps that's what it means

No, there's no animal called joy. I think those are dog footprints, and the people who made the shirt are calling dogs "joy."

I need that shirt

FFS people, dog prints have claw marks, those are the delightfully wonderful beans of a CAT

It's weird and I don't like it. 

Could be a baby animal. Looks like a cat of some kind. Something with retractable claws at least, so not a dog.

Ah yes, the famous woodland animals, giraffes and lions.

kangaroo?

there's no animal called "joy" in English. it's likely a shirt made by someone who doesn't actually speak English and used an online translator to get the English names. either they made a typo entering the animal's name in their language or the name of the animal in their language can also mean "joy."