Extreme Monotremes: Why Do Egg-Laying Mammals Still Exist? - Scientific American
Australian animal oddities
Green turtles lay eggs in the sand - ABC News (Australian Broadcasting Corporation)
platypus | Eggs, Habitat, Venom, & Facts | Britannica
The first known case of eggs plus live birth from one pregnancy in a tiny lizard
Great Mom Platypuses Laying Eggs And Cute Platypuses Moments - YouTube
Echidna: Extraordinary Egg-Laying Mammal (Australian Natural History S.), Augee, Michael, Gooden, Brett, Musser, Anne, Augee, Michael, Gooden, Brett, Musser, Anne - Amazon.com
Introduction to the Monotremata
Great Mom Platypuses Laying Eggs And Cute Platypuses Moments - YouTube
Are There Mammals That Lay Eggs? - Earthpedia - Earth.com
Turtles choose their egg-laying date - Australian Geographic
Mammals That Lay Eggs | Echidnas Facts | DK Find Out
monotreme | Definition, Characteristics, Reproduction, Examples, & Facts | Britannica
The platypus puzzle | Natural History Museum
Photo Ark: Short-Beaked Echidnas | National Geographic Society
Platypus in peril: Australian egg-laying mammals' habitat shrunk by 22% in 30 years | Daily Sabah
Echidna | Australia animals, Australian animals, Echidna
Echidna | Weird animals, Unusual animals, Australia animals
Marsupials | catastrokitty
Australia's egg-laying mammals provide clues to our earliest ancestor | Evolution | The Guardian
The short-beaked echidna is an Australian mammal that has no nipples, and lays eggs. : Awwducational
Researchers study a lizard that both lays eggs and gives birth to live babies | Daily Mail Online
Echidna - Wikipedia
Monotremes - Egg laying mammals - YouTube
Monotreme - Wikipedia
Is there an animal which, both gives milk and lays eggs? - Quora
Echidna | San Diego Zoo Animals & Plants
