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(en-US) ABS-CBN News, « 'Bertha' the hippo, Manila Zoo's oldest inhabitant, dies at 65 », ABS-CBN News, (lire en ligne, consulté le )
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(en) William E. Barklow, « Low-frequency sounds and amphibious communication in Hippopotamus amphibious », The Journal of the Acoustical Society of America, vol. 115, no 5, , p. 2555 (DOI10.1121/1.4783854, lire en ligne)
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(en) John Mooallem, American Hippopotamus, New York, The Atavist, (lire en ligne)
(en) Thomas Leiper Kane, Amharic-English dictionary : H – N., Volume 1, Wiesbaden, Otto Harrassowitz Verlag, , 2351 p. (ISBN3-447-02871-8, lire en ligne), p. 1909
(en) U. de V. Pienaar, P. Van Wyk et N. Fairall, « An experimental cropping scheme of Hippopotami in the Letaba river of the Kruger National Park », Koedoe, vol. 9, no 1, (DOI10.4102/koedoe.v9i1.778, lire en ligne)
(en) Marshall, P.J. et Sayer, J.A., « Population ecology and response to cropping of a hippopotamus population in eastern Zambia », The Journal of Applied Ecology, vol. 13, no 2, , p. 391–403 (DOI10.2307/2401788, JSTOR2401788)
(en) J.R. Hutchinson et E.V. Pringle, « Footfall patterns and stride parameters of Common hippopotamus (Hippopotamus amphibius) on land », PeerJ, vol. 12, , e17675 (PMCID11227274, DOI10.7717/peerj.17675).
(en) Y. Saikawa, K. Hashimoto, M. Nakata, M. Yoshihara, K. Nagai, M. Ida et T. Komiya, « Pigment chemistry: the red sweat of the hippopotamus », Nature, vol. 429, no 6990, , p. 363 (PMID15164051, DOI10.1038/429363a)
(en) Grey, J., Harper, D.M. et Harper, « Using Stable Isotope Analyses To Identify Allochthonous Inputs to Lake Naivasha Mediated Via the Hippopotamus Gut », Isotopes in Environmental Health Studies, vol. 38, no 4, , p. 245–250 (PMID12725427, DOI10.1080/10256010208033269)
(en) McCauley, D. J. et. alet al., « Carbon stable isotopes suggest that hippopotamus-vectored nutrients subsidize aquatic consumers in an East African river », Ecosphere, vol. 6, no 4, (DOI10.1890/ES14-00514.1)
(en) McCarthy, T.S., Ellery, W. N. et Bloem, A, « Some observations on the geomorphological impact of hippopotamus (Hippopotamus amphibius L.) in the Okavango Delta, Botswana », African Journal of Ecology, vol. 36, no 1, , p. 44–56 (DOI10.1046/j.1365-2028.1998.89-89089.x)
(en) William E. Barklow, « Low-frequency sounds and amphibious communication in Hippopotamus amphibious », The Journal of the Acoustical Society of America, vol. 115, no 5, , p. 2555 (DOI10.1121/1.4783854, lire en ligne)
(en) Lewison, R, « Infanticide in the hippopotamus: evidence for polygynous ungulates », Ethology, Ecology & Evolution, vol. 10, no 3, , p. 277–286 (DOI10.1080/08927014.1998.9522857, lire en ligne)
(en) Graham L.H., Reid K., Webster T., Richards M. et Joseph S., « Endocrine patterns associated with reproduction in the Nile hippopotamus (Hippopotamus amphibius) as assessed by fecal progestagen analysis », General and Comparative Endocrinology, vol. 128, no 1, , p. 74–81 (PMID12270790, DOI10.1016/S0016-6480(02)00066-7)
(en) Liora Kolska Horwitz et Eitan Tchernov, « Cultural and Environmental Implications of Hippopotamus Bone Remains in Archaeological Contexts in the Levant », Bulletin of the American Schools of Oriental Research, vol. 280, , p. 67–76 (DOI10.2307/1357310)
(en) Georg Haas, « On the Occurrence of Hippopotamus in the Iron Age of the Coastal Area of Israel », Bulletin of the American Schools of Oriental Research, vol. 132, , p. 30–34 (DOI10.2307/1355798)
(en) Okello, J.B.A, Nyakaana, S., Masembe, C., Siegismund, H.R. an Arctander, P., « Mitochondrial DNA variation of the common hippopotamus: evidence for a recent population expansion. », Heredity, vol. 95, no 3, , p. 206–215 (PMID16030528, DOI10.1038/sj.hdy.6800711)
(en) Burney, David A. et Ramilisonina, « The Kilopilopitsofy, Kidoky, and Bokyboky: Accounts of Strange Animals from Belo-sur-mer, Madagascar, and the Megafaunal "Extinction Window" », American Anthropologist, vol. 100, no 4, , p. 957–966 (DOI10.1525/aa.1998.100.4.957, JSTOR681820)
(en) Georgia Tsagkogeorga, Michael R. McGowen, Kalina T. J. Davies, Simon Jarman, Andrea Polanowski, Mads F. Bertelsen et Stephen J. Rossiter, « A phylogenomic analysis of the role and timing of molecular adaptation in the aquatic transition of cetartiodactyl mammals », Royal Society Open Science, vol. 2, no 9, , p. 150156 (ISSN2054-5703, DOI10.1098/rsos.150156)
(en) Geisler, J. H. et Theodor, J. M., « Hippopotamus and whale phylogeny », Nature, vol. 458, no 7236, , E1–4; discussion E5 (PMID19295550, DOI10.1038/nature07776)
(en) Kendall, C. J., « The spatial and agricultural basis of crop raiding by the Vulnerable common hippopotamus Hippopotamus amphibius around Ruaha National Park, Tanzania », Oryx, vol. 45, no 1, , p. 28–34 (DOI10.1017/S0030605310000359)
(en) JD Clark, Y Beyene, G WoldeGabriel, WK Hart, PR Renne, H Gilbert, A Defleur, G Suwa, S. Katoh, Kenneth R. Ludwig, Jean-Renaud Boisserie, Berhane Asfaw et Tim D. White, « Stratigraphic, chronological and behavioural contexts of Pleistocene Homo sapiens from Middle Awash, Ethiopia », Nature, vol. 423, no 6941, , p. 747–52 (PMID12802333, DOI10.1038/nature01670)
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(en) Beckwitt, R., Shea, J., Osborne, D., Krueger, S. et and Barklow, W., « A PCR-based method for sex identification in Hippopotamus amphibius », African Zoology, , p. 127–130 (lire en ligne)
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(en) Lewison, R, « Infanticide in the hippopotamus: evidence for polygynous ungulates », Ethology, Ecology & Evolution, vol. 10, no 3, , p. 277–286 (DOI10.1080/08927014.1998.9522857, lire en ligne)
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(en) J. P. Dudley, « Reports of carnivory by the common hippo Hippopotamus Amphibius », South African Journal of Wildlife Research, vol. 28, no 2, , p. 58–59 (ISSN2410-7220, lire en ligne)
(en) Georgia Tsagkogeorga, Michael R. McGowen, Kalina T. J. Davies, Simon Jarman, Andrea Polanowski, Mads F. Bertelsen et Stephen J. Rossiter, « A phylogenomic analysis of the role and timing of molecular adaptation in the aquatic transition of cetartiodactyl mammals », Royal Society Open Science, vol. 2, no 9, , p. 150156 (ISSN2054-5703, DOI10.1098/rsos.150156)
(en) Jon Mooallem, « Lake Bacon: The Story of The Man Who Wanted Us to Eat Mississippi Hippos », The Newsweek Daily Beast Company, (ISSN0028-9604, lire en ligne, consulté le )
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(en) Référence UICN : espèce Hippopotamus amphibius Database entry includes a range map and justification for why this species is vulnerable.
jstor.org
(en) Marshall, P.J. et Sayer, J.A., « Population ecology and response to cropping of a hippopotamus population in eastern Zambia », The Journal of Applied Ecology, vol. 13, no 2, , p. 391–403 (DOI10.2307/2401788, JSTOR2401788)
(en) Burney, David A. et Ramilisonina, « The Kilopilopitsofy, Kidoky, and Bokyboky: Accounts of Strange Animals from Belo-sur-mer, Madagascar, and the Megafaunal "Extinction Window" », American Anthropologist, vol. 100, no 4, , p. 957–966 (DOI10.1525/aa.1998.100.4.957, JSTOR681820)
koedoe.co.za
(en) U. de V. Pienaar, P. Van Wyk et N. Fairall, « An experimental cropping scheme of Hippopotami in the Letaba river of the Kruger National Park », Koedoe, vol. 9, no 1, (DOI10.4102/koedoe.v9i1.778, lire en ligne)
(en) J.R. Hutchinson et E.V. Pringle, « Footfall patterns and stride parameters of Common hippopotamus (Hippopotamus amphibius) on land », PeerJ, vol. 12, , e17675 (PMCID11227274, DOI10.7717/peerj.17675).
(en) Y. Saikawa, K. Hashimoto, M. Nakata, M. Yoshihara, K. Nagai, M. Ida et T. Komiya, « Pigment chemistry: the red sweat of the hippopotamus », Nature, vol. 429, no 6990, , p. 363 (PMID15164051, DOI10.1038/429363a)
(en) Grey, J., Harper, D.M. et Harper, « Using Stable Isotope Analyses To Identify Allochthonous Inputs to Lake Naivasha Mediated Via the Hippopotamus Gut », Isotopes in Environmental Health Studies, vol. 38, no 4, , p. 245–250 (PMID12725427, DOI10.1080/10256010208033269)
(en) Graham L.H., Reid K., Webster T., Richards M. et Joseph S., « Endocrine patterns associated with reproduction in the Nile hippopotamus (Hippopotamus amphibius) as assessed by fecal progestagen analysis », General and Comparative Endocrinology, vol. 128, no 1, , p. 74–81 (PMID12270790, DOI10.1016/S0016-6480(02)00066-7)
(en) Okello, J.B.A, Nyakaana, S., Masembe, C., Siegismund, H.R. an Arctander, P., « Mitochondrial DNA variation of the common hippopotamus: evidence for a recent population expansion. », Heredity, vol. 95, no 3, , p. 206–215 (PMID16030528, DOI10.1038/sj.hdy.6800711)
(en) Geisler, J. H. et Theodor, J. M., « Hippopotamus and whale phylogeny », Nature, vol. 458, no 7236, , E1–4; discussion E5 (PMID19295550, DOI10.1038/nature07776)
(en) JD Clark, Y Beyene, G WoldeGabriel, WK Hart, PR Renne, H Gilbert, A Defleur, G Suwa, S. Katoh, Kenneth R. Ludwig, Jean-Renaud Boisserie, Berhane Asfaw et Tim D. White, « Stratigraphic, chronological and behavioural contexts of Pleistocene Homo sapiens from Middle Awash, Ethiopia », Nature, vol. 423, no 6941, , p. 747–52 (PMID12802333, DOI10.1038/nature01670)
njgonline.nl
(en) Th. van Kolfschoten, « The Eemian mammal fauna of central Europe », Netherlands Journal of Geosciences, vol. 79, nos 2/3, , p. 269–281 (lire en ligne)
(en) J. P. Dudley, « Reports of carnivory by the common hippo Hippopotamus Amphibius », South African Journal of Wildlife Research, vol. 28, no 2, , p. 58–59 (ISSN2410-7220, lire en ligne)
(en) Meijaard, Erik (ed.), « Suiform Soundings: The IUCN/SSC Pigs, Peccaries, and Hippos Specialist Group (PPHSG) Newsletter », UICN, vol. 5, no 1, (lire en ligne [PDF])
(en) Jon Mooallem, « Lake Bacon: The Story of The Man Who Wanted Us to Eat Mississippi Hippos », The Newsweek Daily Beast Company, (ISSN0028-9604, lire en ligne, consulté le )