|You might also like:||Monotreme Printout||Marsupials||Duck-billed Platypus Printout||Echidna/Spiny Anteater Printout||Placental Mammals||Today's featured page: Middle East|
ALL ABOUT MAMMALS!
Geologic Time Chart
|Introduction to Mammals||Groups of Mammals||Ice Age Mammals||Mammalian Evolution||Classification||Mammal Index||Activities and Worksheets|
|Groups of Mammals|
Monotremes are the most primitive mammals. There are three species of monotremes, the duck-billed platypus (Ornithorhynchus) and two spiny anteaters, or echidnas (Tachyglossus and Zaglossus). These mammals lay eggs; after the babies hatch, the mothers nourish their young with milk. Today, monotremes live only in Australia and New Guinea. The name monotreme means "one-holed," referring to the cloaca, a single hole that serves the urinary tract, anus, and reproductive tract in monotremes.
The Duck-billed Platypus is a primitive mammal from Australia. Go to a platypus guiz or go to the answers.
Monotremes are primitive, egg-laying mammals. Spiny anteaters and the duck-billed platypus are monotremes.
Also called the echidna, this is a primitive, egg-laying mammal from Australia and New Guinea.
Over 35,000 Web Pages
Sample Pages for Prospective Subscribers, or click below
Overview of Site|
Enchanted Learning Home
Monthly Activity Calendar
Books to Print
Parts of Speech
The Test of Time
TapQuiz Maps - free iPhone Geography Game
Biology Label Printouts
Physical Sciences: K-12
Art and Artists
Label Me! Printouts
|Search the Enchanted Learning website for:|