Monotreme

Monotremes (/ˈmɒnətriːmz/) are mammals of the order Monotremata. They are the only known group of living mammals that lay eggs, rather than bearing live...

Echidnas (/ɪˈkɪdnəz/), sometimes known as spiny anteaters, are quill-covered monotremes (egg-laying mammals) belonging to the family Tachyglossidae /tækiˈɡlɒsɪdiː/...

the five extant species of monotremes, mammals that lay eggs instead of giving birth to live young. Like other monotremes, the platypus senses prey in...

Steropodon is a genus of prehistoric platypus-like monotreme, or egg-laying mammal. It contains a single species, Steropodon galmani, that lived about...

based on reproductive techniques: egg-laying mammals (yinotherians or monotremes - see also Australosphenida), and mammals which give live birth (therians)...

All modern mammals give birth to live young, except the five species of monotremes, which are egg-laying mammals. The most species-rich group of mammals...

exceptions are reported) and epipubic bones are present. Marsupials (and monotremes) also lack a gross communication (corpus callosum) between the right and...

cynodonts. Most of the animals in this group are extinct. The egg-laying monotremes are known from fossils of the Cretaceous and Cenozoic periods; they are...

Flannery and Groves, 1998 – the largest subspecies, and the largest extant monotreme. It is found throughout the mountains of central New Guinea, from the...

Michael; Rich, Thomas H.; Jones, Robert (5 October 1995). "A new family of monotremes from the Creataceous of Australia". Nature. 377 (6548): 418–420. Bibcode:1995Natur...

subclasses based on reproductive techniques: egg laying mammals (the monotremes), and live birth mammals. The second subclass is divided into two infraclasses:...

sometimes specific to only one species (as observed in certain bird and monotreme species). One logical way to equalize gene expression amongst males and...

vertebrate animals. All amphibians, reptiles, birds, and a few mammals (monotremes, tenrecs, golden moles, and marsupial moles), have this orifice, from...

of the Early Cretaceous monotreme Steropodon is similar to those of Peramus and dryolestoids, which suggests that monotremes are related to some pre-tribosphenic...

although some, such as scorpions, do not. Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective shell, either...

extant mammalian species, dominated by the marsupials, but also including monotremes and placentals. The marsupials evolved to fill specific ecological niches...

of the only distantly related erinaceomorph hedgehogs and Australian monotreme echidnas as well as tenrecid tenrecs. The word "porcupine" comes from...

Teinolophos is a prehistoric species of monotreme, or egg-laying mammal, from the Teinolophidae. It is known from four specimens, each consisting of a...

Purpose-inator", and Agent P must defeat him before he find it. 121 9 "Misperceived Monotreme" Jay Lender Kaz & Tom Minton Martin Olson May 13, 2011 (2011-05-13) 305b...

Patagorhynchus is a genus of prehistoric monotreme mammal from the Late Cretaceous (early Maastrichtian) Chorrillo Formation of Santa Cruz Province, Argentina...