More than likely an oversight; Azurill seems (in several ways) to have been a hastily-reworked Cleffa (it has several things in common with Cleffa that don't match Marill very well - gender ratio the worst of them.) --- Creator of Jay's Journey (see quote!) "It's not ten years old! Therefore, it sucks!" - Nostalgia whores everywhere
From: jayman7 | Posted: 5/4/2013 2:37:42 AM | #018
Lots of Pokémon evolve into Pokémon based on different animals - for instance, Zigzagoon (a raccoon) evolves into Linoone (sort of a weasely thing, but definitely not a raccoon). And the "obvious theme of a gun to a cannon" is not obvious to a lot of people - and far less obvious than the theme of... a heart to a heart.
Zigzagoon and Linoone follows a theme though (lines), and Linoone is a badger of sorts. The heart to a heart feels like fishy (lol) though. --- http://i.imgur.com/ZOdcN.png We Are XROS HEART!