Opabinia
Opabinia regalis lived 500 million years ago during the Cambrian Period. It had 5 eyes, a proboscis, and a backwards mouth. It was about 2-3 inches long, and it ate plankton by catching it's proboscis, the feeding it up to it's mouth! The opabinia was also the awesomest creature alive!
Opabinias are very awesome!!
Opabinia
A prehistoric sea creature that existed during the Cambrian period. Mainly looking very unusual and alien-like from most modern sea creatures today.
I personally find the Opabinia to be way cooler than the tyrannosaurus rex.