Are There Mammals That Lay Eggs? - Earthpedia - Earth.com
monotreme | Definition, Characteristics, Reproduction, Examples, & Facts | Britannica
Introduction to the Monotremata
Why Odd Egg-Laying Mammals Still Exist | Live Science
The first known case of eggs plus live birth from one pregnancy in a tiny lizard
Echidna: Extraordinary Egg-Laying Mammal (Australian Natural History S.), Augee, Michael, Gooden, Brett, Musser, Anne, Augee, Michael, Gooden, Brett, Musser, Anne - Amazon.com
Researchers study a lizard that both lays eggs and gives birth to live babies | Daily Mail Online
Possum - ABC News (Australian Broadcasting Corporation)
Monotremes - Egg laying mammals - YouTube
Snake egg' mystery leaves experts scrambling after Australian school's discovery | Snakes | The Guardian
Do any mammals lay eggs? - Quora
Do any mammals lay eggs? - Quora
Extreme Monotremes: Why Do Egg-Laying Mammals Still Exist? - Scientific American
Australia's egg-laying mammals provide clues to our earliest ancestor | Evolution | The Guardian
Do Mammals Lay Eggs? Which Mammals Lay Eggs? - WorldAtlas
The short-beaked echidna is an Australian mammal that has no nipples, and lays eggs. : Awwducational
Green turtles lay eggs in the sand - ABC News (Australian Broadcasting Corporation)
Monotreme - Wikipedia
Is there an animal which, both gives milk and lays eggs? - Quora
Which Mammal lays Eggs? | Pitara Kids' Network
Great Mom Platypuses Laying Eggs And Cute Platypuses Moments - YouTube
Turtles choose their egg-laying date - Australian Geographic
Australian animal oddities
Echidna | Weird animals, Unusual animals, Australia animals
Two native Australian animals, Platypus (left) and Echidnas (right), are the only two mammals in the world that lay eggs to give birth - 9GAG
