Monotreme - Wikipedia
Green turtles lay eggs in the sand - ABC News (Australian Broadcasting Corporation)
Echidna | Weird animals, Unusual animals, Australia animals
Australia's egg-laying mammals provide clues to our earliest ancestor | Evolution | The Guardian
Platypus in peril: Australian egg-laying mammals' habitat shrunk by 22% in 30 years | Daily Sabah
Some common Australian Animals | Australian animals, Weird mammals, Weird animals
Snake egg' mystery leaves experts scrambling after Australian school's discovery | Snakes | The Guardian
Great Mom Platypuses Laying Eggs And Cute Platypuses Moments - YouTube
Australian animal oddities
The first known case of eggs plus live birth from one pregnancy in a tiny lizard
monotreme | Definition, Characteristics, Reproduction, Examples, & Facts | Britannica
Turtles choose their egg-laying date - Australian Geographic
Marsupials | catastrokitty
Echidna - Wikipedia
Which Mammal lays Eggs? | Pitara Kids' Network
English | Dr. Neurosaurus | Mammals, Australia animals, Animal facts
Extreme Monotremes: Why Do Egg-Laying Mammals Still Exist? - Scientific American
Introduction to the Monotremata
Echidna: Extraordinary Egg-Laying Mammal (Australian Natural History S.), Augee, Michael, Gooden, Brett, Musser, Anne, Augee, Michael, Gooden, Brett, Musser, Anne - Amazon.com
Facts About Echidnas | Live Science
Monotremes - Egg laying mammals - YouTube
Echidna | San Diego Zoo Animals & Plants
Possum - ABC News (Australian Broadcasting Corporation)
