Gary is a snail ... (air-breathing) snail,” but Callomon couldn’t be certain. “There are at least 20,000 named species of terrestrial mollusk, ranging from the tiny—no more than 2 mm ...

Elon Musk’s snail is playing a key role in the development of hyperloop, a transit system that moves people at speeds of up to 700 miles per hour. While the gooey gastropod called “Gary” may ...