so, I herd u liek mudkipz...
Mudkip evolves at level 16.
You can't get mudkip in leaf green,only in Ruby,Sapphire,Emerald,Diamond,Pearl and Platinum.Sorry!
In the bin, in old gregs house
you cant you have to migrate it and u have to have the national pokedex in Pokemon diamond
migrate from ruby sapphire or emerald
Mudkip can only be obtained by migrating from Ruby, Sapphire or Emerald, after you defeat the Elite 4 and champion, and obtain the national Dex.
In Solaceon Town Leave a Marshtomp/Swampert with a Ditto and voila! A Lv.1 Mudkip!
You probably caught it at pal park. This means that you migrated it from ruby/sapphire/emerald version. There is no way to catch a mudkip without cheats in Pokemon diamond. I'm sorry to say that it is impossible to catch in Diamond without migration or cheats: This is the guy who found torchic (not in pal park). I found it licking honey off a tree.
I don't remember getting a mudkip egg in Pokemon Diamond but there is an alternate way I guess. Transfer Mudkip (or its other evolutions) from your GBA games to Diamond using Pal Park. Put the Mudkip (or its other evolutions) into the daycare center with a Ditto or its other compatible matches. Walk for a while (use a bike, its faster) and if you go back the daycare person will say they left an egg. Take the egg and after you have walked a few thousand steps, WAZAM, you have a hatched mudkip.
mudkip
No a Mudkip is a fish.
You have to get a mudkip and breed it