Results 31 to 40 of about 1,345 (170)
Echidna venom gland transcriptome provides insights into the evolution of monotreme venom. [PDF]
PLoS ONE, 2013 Monotremes (echidna and platypus) are egg-laying mammals. One of their most unique characteristic is that males have venom/crural glands that are seasonally active.
Emily S W Wong +3 more
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Energy Homeostasis in Monotremes [PDF]
Frontiers in Neuroscience, 2017 In 1803, the French anatomist Étienne Geoffroy Saint-Hilaire decided that the newly described echidna and platypus should be placed in a separate order, the monotremes, intermediate between reptiles and mammals. The first physiological observations showed monotremes had low body temperatures and metabolic rates, and the consensus was that they were at ...
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Pattern of the divergence of olfactory receptor genes during tetrapod evolution. [PDF]
PLoS ONE, 2008 The olfactory receptor (OR) multigene family is responsible for the sense of smell in vertebrate species. OR genes are scattered widely in our chromosomes and constitute one of the largest gene families in eutherian genomes.
Takushi Kishida
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Marsupial and Monotreme Genomes
, 2006 Marsupials and monotremes are 'alternative mammals', independent experiments of mammalian evolution that diverged from placental mammals 180 and 210 million years ago (MYA), respectively. Marsupials (e.g. kangaroo, opossum) and monotremes (e.g. platypus) differ from placental mammals in many characteristics, particularly reproduction.
Koina, Edda +2 more
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Nature, 1906 IN Semon's Zoologische Forschungsreisen, Lieferung xxii. (1904), Disselhorst treats of “Die maennlichen Geschlechtsorgane der monotremen und einiger Marsupialen.” On p. 123 are two text figures, both copied from Sir Everard Home, Phil. Trans., 1802, plate xii. One represents the male genital apparatus of Echidna hystrix, the other, Fig.
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Vivid biofluorescence discovered in the nocturnal Springhare (Pedetidae)
Scientific Reports, 2021 Biofluorescence has been detected in several nocturnal-crepuscular organisms from invertebrates to birds and mammals. Biofluorescence in mammals has been detected across the phylogeny, including the monotreme duck-billed platypus (Ornithorhyncus anatinus)
Erik R. Olson +11 more
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All-a-glow: spectral characteristics confirm widespread fluorescence for mammals
Royal Society Open Science, 2023 Mammalian fluorescence has been reported from numerous species of monotreme, marsupial and placental mammal. However, it is unknown how widespread this phenomenon is among mammals, it is unclear for many species if these observations of ‘glowing’ are ...
Kenny J. Travouillon +4 more
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The Anatomical Record, EarlyView.Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti +4 more
wiley +1 more source
The Evolution of Marsupial and Monotreme Chromosomes [PDF]
Cytogenetic and Genome Research, 2012 Marsupial and monotreme mammals fill an important gap in vertebrate phylogeny between reptile-mammal divergence 310 million years ago (mya) and the eutherian (placental) mammal radiation 105 mya. They possess many unique features including their distinctive chromosomes, which in marsupials are typically very large and well conserved between species. In
Deakin, Janine +2 more
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