What are these creatures?

As I am doind the dishes (duh) I have this song blaring from the TV and think to myself, "I know all of the words to this song, love to watch the show, but have no idea what species two of my little friends belong to! What are Austin and Uniqua?"

Okay, so most of us know that these are the Backyardigans...
But do we know what these creatures really are?
So, here is the lowdown on these things that we love. I found the information on Wikepedia. (Love that site)

PABLO: A bubbly blue penguin, famous for his blue bow tie and his blue and yellow propeller hat, is the one who most often has the ideas. Due to his energy and impetuousness, he takes the lead in many situations, but often goes into a "panic attack" when he faces an obstacle, running around in circles and blabbering nonsense – "Oh boy! Oh boy! Don't lose your heads! We'll find a way out! Oh, boy! Oh no! Oh man! Oh man!" – until someone interrupts him to propose a solution with "Pablo...Pablo?...PABLO!", at which point he stops, turns to the character and calmly asks "Yeah?"

TYRONE: A good-natured (and sometimes fearful) red-haired orange moose, he is Pablo's best friend, and almost his complete opposite in terms of personality. He is laid-back, cool-headed, and known for his ironic comments – for example, "That most certainly is!" and "That certainly is convenient!" upon the arrival of some sort of deus ex machina. At the end of every episode, he remarks, "That was an excellent (type) adventure, don't you think?" (This was intentionally self-parodied at the end of "Tale of the Mighty Knights", when Tyrone said it was an 'egg-cellent' knightly adventure.) Despite not appearing to wear trousers (except on rare occasions, such as "Race Around the World"), Tyrone somehow manages to put his hands in his pockets.

UNIQUA: A curious, self-confident and high-spirited pink creature with polka dots and overalls, she is almost always sweet and friendly, though her strong opinions and occasional stubbornness get in the way of her relationships. She is more tomboyish than Tasha, and often imagines herself in roles requiring brains and fortitude (scientist, pirate captain, etc). More than once, when she has got the mystery solved she will interject with a "You guys!"
Much controversy has been raised over what species she belongs to. Suggestions included a ladybug (due to her pink polka dots), an ant (due to her antennae), and even an alien. But actually, she is a unique creature that is unlike any other in the world, and Uniqua is also the name of her species.[5] She has been called simply "Uniqua, the pink" in Knights Are Brave and Strong.

AUSTIN: A fun-loving purple kangaroo who moved into the block recently; [6] this makes him a little shy on some occasions, and reluctant to join in. He is also very self-confident, and tries to help his friends whenever they need, sometimes in quirky ways. Says Bogush: "Austin's usually the one pulling up the rear. He's kind of a get-along guy."[7] Although he appears in the show the least-often, he was voted the second-favorite character in a poll, only behind Pablo.

TASHA: A little girl Hippopotamus, in red shoes and a flowered dress. Tasha is Uniqua’s much-admired and always eagerly-awaited play date. She looks sweet as pie but underneath her extra girly exterior beats the heart of a CEO -- tough-as-nails, take-no-prisoners, my-way-or-the-highway kind of gal. She's rational, skeptical, and highly motivated to get her own way. But it's always special for Uniqua when Tasha is there, because she's someone who can also be giggly, silly and full of fun.

So now that I know what they are, what fun is our there to be had? I hit up Youtube. I found the best clip that mixes music and kid show. Love it, I have no idea why I love this song like I do, but I do... so there.