“Even the elephant was used to cross the Alps by Hannibal”
Apparently those were a small North African variety that no longer exists.
They weren’t small....Elephas maximus!
http://penelope.uchicago.edu/~grout/encyclopaedia_romana/gladiators/elephantus.html
http://www.livius.org/ha-hd/hannibal/alps.html
http://www.science20.com/rugbyologist/elephant_directed_research