CartSnail

A CartSnail (Cochleae casusdeorsumcollis, Latin for fall down hill snail) is the earliest true ancestor of the modern day RocketSnail. They were abundant during the days of Olde Antarctica.

Background
Like any type of RocketSnail, a CartSnail does not move on its own, but instead relies on some sort of machine to get around.

This symbiotic relationship works fantastically with steam, jet-fuel, and nuclear energy.

Gravity, however, wasn't the most reliable.

A CartSnail cart had a steering wheel, so it could turn itself, but once it came to a halt, the CartSnail was forced to rotate a crank deep inside their vehicle until they reached a hill once more.

The Rite of Passage for a young CartSnail was the ability to go uphill under their own crank-driven power. Any CartSnail could go down, but only mature CartSnails could go up on their own. The crank is very heavy to turn.

Involvement
CartSnails were abundant in Old Antarctica, but they all mysteriously vanished after Colonial Antarctica (and steam-power) came into existence.

Rumors state that one or two CartSnails are still alive, but none have been found.

Trivia

 * CartSnail carts, according to antique logs, were brown, and painted with red stripes.


 * The only known picture of a CartSnail is in the Infobox on the top of this article. It's in Sepia Tone, the only type of photographing available in Olde Antarctica. Grayscale Tone came during Colonial Antarctica. Color was in Modern USA.