Big. Dumb. Pretty. Piotr is definitely a Clydesdale. Juggernaut's a rampaging bull.
Proudstar is totally a bison (like we saw in his first appearance!). Charges into everything head-first. Not at all a coincidence he's kinda 'bull-headed.'
Iceman's an arctic mink. Sleek and playful.
Dazzler's a peacock. Not a drab brown peahen, but as bright and colorful and in-your-face grabs-all-the-attention as she can get.
Destiny's an owl. Just sits there, judging you, and like an owl, her eyesight is *not* the source of how she knows so much.
Prodigy's an African grey parrot. A smart cookie, and capable of / prone to emulating anything he sees or hears.