Platypus

@article{shaw1799the,
    author = "Shaw, George and Nodder, Frederick Polydore",
    title = "The Duck-Billed Platypus, Platypus anatinus.",
    year = "1799",
    journal = "The Naturalist's Miscellany",
    url = "https://doi.org/10.5962/p.304567",
    doi = "10.5962/p.304567",
    number = "CXVIII",
    pages = "385-386",
    volume = "10"
}

@article{geo1846the,
    author = "Geo, John and Griffin, Richard",
    title = "THE ROYAL SOCIETY—ANATOMY OF THE DUCK-BILLED PLATYPUS.—(PLATYPUS ANATINUS.)",
    year = "1846",
    journal = "The Lancet",
    url = "https://doi.org/10.1016/s0140-6736(01)44418-7",
    doi = "10.1016/s0140-6736(01)44418-7",
    number = "1194",
    pages = "78-79",
    volume = "48"
}

@article{owen1846anatomy,
    author = "Owen, Richard",
    title = "ANATOMY OF THE PLATYPUS ANATINUS.",
    year = "1846",
    journal = "The Lancet",
    url = "https://doi.org/10.1016/s0140-6736(02)86844-1",
    doi = "10.1016/s0140-6736(02)86844-1",
    number = "1196",
    pages = "135",
    volume = "48"
}

@article{parer1967respiratory,
    author = "Parer, J.T. and Metcalfe, J.",
    title = "Respiratory studies of monotremes. I. Blood of the platypus (Ornithorynchus anatinus)",
    year = "1967",
    journal = "Respiration Physiology",
    url = "https://doi.org/10.1016/0034-5687(67)90003-5",
    doi = "10.1016/0034-5687(67)90003-5",
    number = "2",
    pages = "136-142",
    volume = "3"
}

The retinal efferent axons of Ornithorhynchus anatinus project, as in the echidna, to two diencephalic nuclei disparate in size and location and designated provisionally as LGNa and LGNb, and to the pretectum and superior colliculus. The primary optic pathways of the platypus are crossed except for a small number of fibers which project to the ipsilateral LGNa and b. The optic input to the superior colliculus enters via a sheet of retinal fibers which runs over the surface of the colliculus and distributes terminal endings to the stratum griseum superficiale. A similar situation exists in the echidna, birds and reptiles, but is not known to be present in therian mammals. No interstitial nuclei were found in the optic tract as are present in the echidna. In addition, no nucleus which could possibly be identified as a dorsal terminal nucleus of the accessory optic system was found in the platypus. Such a nucleus is present in the echidna. Projection of optic axons to a medial terminal nucleus of the accessory optic system is present, although discrete inferior and superior accessory optic fasciculi are not. The primary optic pathways of the platypus appear to be less complex than those of the echidna, possibly due to a more limited use of vision.

@article{campbell1972primary,
    author = "Campbell, C. B. G. and Hayhow, W. R.",
    title = "Primary optic pathways in the duckbill platypus, Ornithorynchus anatinus: An experimental degeneration study",
    year = "1972",
    journal = "Journal of Comparative Neurology",
    abstract = "The retinal efferent axons of Ornithorhynchus anatinus project, as in the echidna, to two diencephalic nuclei disparate in size and location and designated provisionally as LGNa and LGNb, and to the pretectum and superior colliculus. The primary optic pathways of the platypus are crossed except for a small number of fibers which project to the ipsilateral LGNa and b. The optic input to the superior colliculus enters via a sheet of retinal fibers which runs over the surface of the colliculus and distributes terminal endings to the stratum griseum superficiale. A similar situation exists in the echidna, birds and reptiles, but is not known to be present in therian mammals. No interstitial nuclei were found in the optic tract as are present in the echidna. In addition, no nucleus which could possibly be identified as a dorsal terminal nucleus of the accessory optic system was found in the platypus. Such a nucleus is present in the echidna. Projection of optic axons to a medial terminal nucleus of the accessory optic system is present, although discrete inferior and superior accessory optic fasciculi are not. The primary optic pathways of the platypus appear to be less complex than those of the echidna, possibly due to a more limited use of vision.",
    url = "https://doi.org/10.1002/cne.901450206",
    doi = "10.1002/cne.901450206",
    number = "2",
    pages = "195-207",
    volume = "145"
}

@article{smyth1973temperature,
    author = "Smyth, Dermot M",
    title = "Temperature regulation in the platypus, Ornithorhynchus anatinus (shaw)",
    year = "1973",
    journal = "Comparative Biochemistry and Physiology Part A: Physiology",
    url = "https://doi.org/10.1016/0300-9629(73)90074-1",
    doi = "10.1016/0300-9629(73)90074-1",
    number = "3",
    pages = "705-715",
    volume = "45"
}

@article{doi101086physzool51430160956,
    author = "Grant, T. and Dawson, T.",
    title = "Temperature Regulation in the Platypus, Ornithorhynchus anatinus: Production and Loss of Metabolic Heat in Air and Water",
    year = "1978",
    journal = "Physiological Zoology",
    url = "https://www.semanticscholar.org/paper/bb532afe3303622351d797c5929aee5a78a37ff1",
    doi = "10.1086/physzool.51.4.30160956",
    is_oa = "true",
    number = "4",
    pages = "315-332",
    semanticscholar_citation_count = "82",
    semanticscholar_id = "bb532afe3303622351d797c5929aee5a78a37ff1",
    volume = "51"
}

@article{grant1978temperature,
    author = "Grant, T. R. and Dawson, T. J.",
    title = "Temperature Regulation in the Platypus, Ornithorhynchus anatinus: Maintenance of Body Temperature in Air and Water",
    year = "1978",
    journal = "Physiological Zoology",
    url = "https://doi.org/10.1086/physzool.51.1.30158659",
    doi = "10.1086/physzool.51.1.30158659",
    number = "1",
    pages = "1-6",
    volume = "51"
}

@misc{grant1978temperature1,
    author = "Grant, T. Q. and Dawson, T. J",
    title = "Temperature regulation in the platypus Ornithorynchus anatinus",
    year = "1978",
    howpublished = "Production and loss of metabloic heat in air and water: Physiological Zoology, v. 51, p. 315-332",
    note = "talkorigins\_source = {true}; raw\_reference = {Grant, T. Q., and Dawson, T. J., 1978, Temperature regulation in the platypus Ornithorynchus anatinus: Production and loss of metabloic heat in air and water: Physiological Zoology, v. 51, p. 315-332.}"
}

@article{crossref1987paul,
    title = "Paul Stephens – The platypus (Ornithorhynchus anatinus)",
    year = "1987",
    journal = "The Ballarat Naturalist",
    url = "https://doi.org/10.5962/p.383930",
    doi = "10.5962/p.383930",
    pages = "3-4",
    volume = "(1987:Sep)"
}

Blood samples were obtained from two male and two female platypuses at various times after capture and anaesthesia for other experimental purposes. In samples obtained during ketamine–xylazine or pregnanediol anaesthesia 15–24 h after capture, the concentration of total glucocorticoids, measured as 'cortisol equivalent' in a radioligand assay, was 207– 620 nmol/l. In samples taken 14–35 h after injection of dexamethasone (0·2 mg/kg) total glucocorticoid concentration was 79–88 nmol/l. Individual glucocorticoids were isolated on columns of Sephadex LH-20 and measured separately against appropriate standards. In all except two haemolysed samples obtained from a male that died 25 h after capture, the major glucocorticoid behaved as cortisol, contributing 77–94% of the total. The remainder was made up of varying proportions of substances behaving as corticosterone, 11-deoxycortisol and cortisone. In the haemolysed samples from the moribund animal the major reactive substance, contributing 52–54% of the total, behaved as cortisone. The total adrenal gland weight of this animal was 747 mg, compared with 200–286 mg in two others, suggesting preceding exposure to stress. Equilibrium dialysis and polyacrylamide gel electrophoresis (PAGE) revealed no evidence for a transcortin-like glucocorticoid- and progesterone-binding protein in platypus plasma. However, as in the echidna, there was a heat-labile, high-capacity binding system migrating with albumin on PAGE. Glucose was undetectable in the plasma of the moribund animal and only 1·7–2·8 mmol/l in the initial plasma samples from the others. In two animals, injection of glucose i.p and dexamethasone i.m. was followed by an increase in the plasma concentration of glucose to the range 3·8–9·9 mmol/l and commencement of normal swimming and feeding activity for the next 36–48 h. J. Endocr. (1988) 118, 407–415

@article{mcdonald1988glucocorticoids,
    author = "McDonald, I. R. and Than, K. A. and Evans, B.",
    title = "Glucocorticoids in the blood plasma of the platypus Ornithorynchus anatinus",
    year = "1988",
    journal = "Journal of Endocrinology",
    abstract = "Blood samples were obtained from two male and two female platypuses at various times after capture and anaesthesia for other experimental purposes. In samples obtained during ketamine–xylazine or pregnanediol anaesthesia 15–24 h after capture, the concentration of total glucocorticoids, measured as 'cortisol equivalent' in a radioligand assay, was 207– 620 nmol/l. In samples taken 14–35 h after injection of dexamethasone (0·2 mg/kg) total glucocorticoid concentration was 79–88 nmol/l. Individual glucocorticoids were isolated on columns of Sephadex LH-20 and measured separately against appropriate standards. In all except two haemolysed samples obtained from a male that died 25 h after capture, the major glucocorticoid behaved as cortisol, contributing 77–94\% of the total. The remainder was made up of varying proportions of substances behaving as corticosterone, 11-deoxycortisol and cortisone. In the haemolysed samples from the moribund animal the major reactive substance, contributing 52–54\% of the total, behaved as cortisone. The total adrenal gland weight of this animal was 747 mg, compared with 200–286 mg in two others, suggesting preceding exposure to stress. Equilibrium dialysis and polyacrylamide gel electrophoresis (PAGE) revealed no evidence for a transcortin-like glucocorticoid- and progesterone-binding protein in platypus plasma. However, as in the echidna, there was a heat-labile, high-capacity binding system migrating with albumin on PAGE. Glucose was undetectable in the plasma of the moribund animal and only 1·7–2·8 mmol/l in the initial plasma samples from the others. In two animals, injection of glucose i.p and dexamethasone i.m. was followed by an increase in the plasma concentration of glucose to the range 3·8–9·9 mmol/l and commencement of normal swimming and feeding activity for the next 36–48 h. J. Endocr. (1988) 118, 407–415",
    url = "https://doi.org/10.1677/joe.0.1180407",
    doi = "10.1677/joe.0.1180407",
    number = "3",
    pages = "407-415",
    volume = "118"
}

@article{s28268a711871c7047fb1983f6b1ed3b2bd0b412a9,
    author = "Grant, T. and Grigg, G. and Beard, L. and Augee, M.",
    title = "Movements and burrow use by platypuses, Ornithorhynchus anatinus, in the Thredbo River, New South Wales",
    year = "1992",
    url = "https://www.semanticscholar.org/paper/8268a711871c7047fb1983f6b1ed3b2bd0b412a9",
    is_oa = "true",
    semanticscholar_citation_count = "14",
    semanticscholar_id = "8268a711871c7047fb1983f6b1ed3b2bd0b412a9"
}

@article{s297b8ac30a4b5c47fa8f09915bcded57baa32eb38,
    author = "Gaughan, J. and Hogan, L. and Wallage, A.",
    title = "Thermoregulation in marsupials and monotremes",
    year = "2015",
    url = "https://www.semanticscholar.org/paper/97b8ac30a4b5c47fa8f09915bcded57baa32eb38",
    is_oa = "true",
    semanticscholar_citation_count = "5",
    semanticscholar_id = "97b8ac30a4b5c47fa8f09915bcded57baa32eb38"
}