Animals

Magellan goose

Maggot

Magnificent tree frog

Magnosaurus

Magnosaurus — a fragmentary Middle Jurassic theropod from England

Magpie

Magpie (Pica and related corvids)

Mahakala

Mahakala — a small basal dromaeosaur from the Late Cretaceous

Maiasaura

Maiasaura — the 'good mother' duck-billed dinosaur

Maine Coon

Maine Coon (domestic cat breed)

Maize weevil

Maize weevil (Sitophilus zeamais): biology, range, impact, and control

Majoidea

Majungasaurus

Malacostraca

Malayan tapir

Malayan tapir (Tapirus indicus): appearance, habitat, behavior and conservation

Malayan tiger

Malayan tiger (Panthera tigris jacksoni) — overview and conservation

Mallard

Mallard (Anas platyrhynchos): description, behavior and distribution

Maltese (dog)

Maluridae

Maluridae — fairywrens, grasswrens and emu-wrens

Mamba

Mamba (Dendroaspis): fast-moving African venomous snakes

Mamenchisaurus

Mammal

Mammal-like reptile

Therapsids and the Outdated Phrase “Mammal-like Reptile”

Mammalia (taxonomy)

Mammalia (class): Characteristics, Evolution, and Diversity

Mammoth

Manatee

Mandarin duck

Mandarin duck (Aix galericulata): appearance, range, and significance

Mandrill

Mandrill (Mandrillus sphinx)

Manipur frog

Maniraptora

Maniraptora: the hand‑snatching theropods and their link to birds

Manta ray

Manta Ray: giant filter-feeding rays of tropical seas

Mantellidae

Mantellinae

Mantidfly

Mantidfly (Mantispidae): description, life cycle, distribution and distinctions

Mantis

Mantis (Mantodea): overview of praying mantids

Mantis shrimp

Mantis shrimp: the stomatopod predators with extraordinary vision and strikes

Mantophasmatidae

Mantophasmatidae: the gladiator insects — overview and history

Manucodia

Manucodia — the manucodes, a genus of birds-of-paradise

Manx cat

Manx cat: tailless or short-tailed domestic breed from the Isle of Man

Marabou stork

Marabou stork (Leptoptilos crumeniferus)

Marbled cat

Marbled cat (Pardofelis marmorata): small arboreal felid of Asia

Margay

Marginocephalia

Marine angelfish

Marine iguana

Marine iguana (Amblyrhynchus cristatus)

Markhor

Markhor (Capra falconeri): mountain goat of Central Asia

Marlin

Marlin (Istiophoridae) — overview, biology, and human interaction

Marmoset

Marrella

Marrella (Marrella splendens): a Cambrian arthropod from the Burgess Shale

Marshosaurus