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Monotreme lactation protein is highly expressed in monotreme milk and provides antimicrobial protection. [PDF]
Genome Biology and Evolution, 2014 Monotremes (platypus and echidna) are the descendants of the oldest ancestor of all extant mammals distinguished from other mammals by mode of reproduction. Monotremes lay eggs following a short gestation period and after an even briefer incubation period, altricial hatchlings are nourished over a long lactation period with milk secreted by nipple-less
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Nature, 1967
INTEREST has recently been focused on the DNA content of the different classes of vertebrates. Although the number and size of chromosomes in placental mammals vary considerably, biochemical determinations have shown that the DNA content is relatively constant1.
Y A, Bick, W D, Jackson
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INTEREST has recently been focused on the DNA content of the different classes of vertebrates. Although the number and size of chromosomes in placental mammals vary considerably, biochemical determinations have shown that the DNA content is relatively constant1.
Y A, Bick, W D, Jackson
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Monotreme and marsupial reproduction
Reproduction, Fertility and Development, 1995Marsupials were regarded as curiosities by their early European discoverers, animals to be wondered at. Monotremes were even more surprising; the platypus was such an amalgam of characters that it was thought to be a hoax. They were recognized very early as mammals that could make a major contribution to our understanding of reproductive processes, and
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2009
Abstract Monotremes are the sole living representatives of the mammalian Subclass Prototheria (1). Living monotremes have traditionally been viewed as the descendants of pre-tribosphenic mammalian ancestors that lacked the distinctive tribosphenic molar that is capable of both shearing and grinding functions.
Mark S Springer, Carey W Krajewskib
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Abstract Monotremes are the sole living representatives of the mammalian Subclass Prototheria (1). Living monotremes have traditionally been viewed as the descendants of pre-tribosphenic mammalian ancestors that lacked the distinctive tribosphenic molar that is capable of both shearing and grinding functions.
Mark S Springer, Carey W Krajewskib
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2018
Knowledge of reproduction in monotremes is considered, particularly the genes involved. Male reproduction examines the production, bundle formation and capacitation of spermatozoa, fertilization, and the roles of the epididymis, prostate glands, Cowper’s glands and the crural system.
Jones, Russell Campbell +2 more
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Knowledge of reproduction in monotremes is considered, particularly the genes involved. Male reproduction examines the production, bundle formation and capacitation of spermatozoa, fertilization, and the roles of the epididymis, prostate glands, Cowper’s glands and the crural system.
Jones, Russell Campbell +2 more
openaire +1 more source
Tactile neural mechanisms in monotremes
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2003Monotremes, perhaps more than any other order of mammals, display an enormous behavioural reliance upon the tactile senses. In the platypus, Ornithorhynchus anatinus, this is manifest most strikingly in the special importance of the bill as a peripheral sensory organ, an importance confirmed by electrophysiological mapping that reveals a vast area of ...
M J, Rowe +4 more
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The Structure and Development of the Hairs of Monotremes and Marsupials: Part I.—Monotremes
Journal of Cell Science, 1899ABSTRACT IN his paper dealing with the structure of the bill and hairs of Ornithorhynchus,1 Mr. Poulton has described the structure of the hair in an embryo of Ornithorhynchus measuring 8·3 cm. long, in which the larger hairs had appeared above the surface of the skin. Thanks to the kindness of Professor J. T.
Baldwin Spencer, Georgina Sweet
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Conceptus Coats of Marsupials and Monotremes
2018Mammals evolved from oviparous reptiles that laid eggs in a dry, terrestrial environment, thus requiring large amounts of yolk to support development and tough, outer coats to protect them. Eutherian mammals such as humans and mice exhibit an "extreme" form of viviparity in which yolk and conceptus coats have become largely redundant.
Stephen, Frankenberg, Marilyn B, Renfree
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