monotreme: Quick Facts

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Facts

Also Known As	Monotremata

Photos

short-beaked echidna (Tachyglossus aculeatus)

Short-beaked echidna (Tachyglossus aculeatus setosus) with spiny brown fur foraging on rocky ground among plants on Bruny Island, Tasmania.

western long-beaked echidna (Zaglossus bruijni)

A platypus swims at the surface of the water, showing its flat bill, webbed feet, and streamlined body.

A simplified phylogenetic tree diagram showing the evolutionary relationships among major mammal groups, including Tritylodontidae, Morganucodon, Triconodon, Monotremata, Metatheria (marsupials), and Eutheria (placentals), with Mammaliaformes and Mammalia as ancestral branches and living mammals indicated at the top.

Diagram of the tree of life based on the three-domain system, showing Archaea, Bacteria, and Eukaryota branching into four kingdoms: Plants, Animals, Fungi, and Protista, with illustrations of representative organisms for each group.

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Topics

echidna platypus Steropodontidae Ornithorhynchidae Kollikodontidae Oviparity mammal marsupial placental mammal primate artiodactyl perissodactyl cetacean bat carnivore 9 of the World’s Deadliest Mammals rodent

Mute swan with cygnet. (birds)

Match the Baby Animal to Its Mama Quiz

Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters

Animal Group Names

The bearded vulture (Gypaetus barbatus) is seen in Switzerland on December 2024

Animal Factoids

Lion (panthera leo)

Deadliest Animals Quiz

Young chimpanzee dressed in a shirt and sweater vest, scratching his head thinking. (primates)

Wild Words from the Animal Kingdom Vocabulary Quiz