Macaroni Penguin
Macaw
Madagascar Hissing Cockroach
Magnificent Frigate Bird
Magpie
Mallard
Manatee
Mandarin Duck
Mandrill.
Maned Wolf
Mangrove Cat-snake
Manta Ray.
Manx Shearwater
Mara
Marine Iguana
Martial Eagle
Matsie's Tree Kangaroo
Mediterranean Monk Seal
Meerkat
Mekong Giant Catfish
Meller's Chameleon
Mexican Axolotl
Midwife Toad
Millipede
Mistle Thrush
Mockingbird
Mole
Mole Rat
Monarch Butterfly.
Mongoose
Moose.
Mosquito.
Mountain Bluebird
Mountain Goat
Mountain Gorilla
Mountain Lion
Mountain Zebra
Mourning Dove
Mouse Lemur
Mud Skipper
Musk Ox
Mute Swan