Umm..

Spread out your feathers

Startle your whiskers

Stretch your feet

Uncurl your tail

Wiggle your feelers

Feel the bone in your wings

Itch your scales

Brush your teeth

For it will take a very long time

(The previous stanza did not rhyme)

To evolve into that

Oh shoot, dammit, drat

Which animal would need

Wings, scales and webbed feet?

Perhaps in a world

That has fallen sick and hurled

Its oceans over every shore

Leaving no land and therefore

A need to swim

And to fly at whim

This was amusing

For while I was drawing

Was simply reclining

No poem came to mind

No theories opined

Only animals combined.