"Zalophus californianus japonicus (CR)". Japan Integrated Biodiversity Information System. Red Data Book (in Japanese). Ministry of the Environment (Japan). Archived from the original on 5 June 2011. Retrieved 20 August 2013. "The Japanese sea lion (Zalophus californianus japonicus) was common in the past around the coast of the Japanese Archipelago, but declined rapidly after the 1930s from overhunting and increased competition with commercial fisheries. The last record in Japan was a juvenile, captured in 1974 off the coast of Rebun Island, northern Hokkaido."
"Zalophus californianus japonicus (CR)". Japan Integrated Biodiversity Information System. Red Data Book (in Japanese). Ministry of the Environment (Japan). Archived from the original on 5 June 2011. Retrieved 20 August 2013. "The Japanese sea lion (Zalophus californianus japonicus) was common in the past around the coast of the Japanese Archipelago, but declined rapidly after the 1930s from overhunting and increased competition with commercial fisheries. The last record in Japan was a juvenile, captured in 1974 off the coast of Rebun Island, northern Hokkaido."
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Kruger, O.; Wolf, J. B. W.; Jonker, R. M.; Hoffman, J. I.; Trillmich, F. (2014). "Disentangling the contribution of sexual selection and ecology to the evolution of size dimorphism in pinnipeds". Evolution. 68 (5): 1485–1496. doi:10.1111/evo.12370. PMID24475921. S2CID37919557.
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Grant R, Wieskotten S, Wengst N, Prescott T, Dehnhardt G (2013). "Vibrissal touch sensing in the harbor seal (Phoca vitulina): how do seals judge size?". Journal of Comparative Physiology A. 199 (6): 521–531. doi:10.1007/s00359-013-0797-7. PMID23397461. S2CID14018274.
Miller, N. J.; Postle, A. D.; Orgeig, S.; Koster, G.; Daniels, C. B. (2006b). "The composition of pulmonary surfactant from diving mammals". Respiratory Physiology & Neurobiology. 152 (2): 152–68. doi:10.1016/j.resp.2005.08.001. PMID16140043. S2CID23633245.
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Siniff, D. B.; Bengtson, J. L. (1977). "Observations and hypotheses concerning the interactions among crabeater seals, leopard seals, and killer whales". Journal of Mammalogy. 58 (3): 414–416. doi:10.2307/1379341. JSTOR1379341.
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Riedman, M. L.; Le Boeuf, B. J. (1982). "Mother-pup separation and adoption in northern elephant seals". Behavioral Ecology and Sociobiology. 11 (3): 203–13. doi:10.1007/BF00300063. JSTOR4599535. S2CID2332005.
Campagna, C.; Le Boeuf, B. J.; Cappozzo, J. H. (1988). "Pup abduction and infanticide in southern sea lions". Behaviour. 107 (1–2): 44–60. doi:10.1163/156853988X00188. JSTOR4534718.
Cook, F.; Rouse, A.; Wilson, M.; Reichmuth, M. (2013). "A California sea lion (Zalophus californianus) can keep the beat: Motor entrainment to rhythmic auditory stimuli in a non vocal mimic". Journal of Comparative Psychology. 127 (4): 412–427. doi:10.1037/a0032345. PMID23544769. S2CID34580113.
Kastak, D.; Schusterman, R. J. (1998). "Low-frequency amphibious hearing in pinnipeds: Methods, measurements, noise, and ecology". The Journal of the Acoustical Society of America. 103 (4): 2216–2228. Bibcode:1998ASAJ..103.2216K. doi:10.1121/1.421367. PMID9566340.
Roffe, T. J.; Mate, B. R. (1984). "Abundances and feeding habits of Pinnipeds in the Rogue River, Oregon". The Journal of Wildlife Management. 48 (4): 1262–1274. doi:10.2307/3801787. JSTOR3801787.
Siniff, D. B.; Bengtson, J. L. (1977). "Observations and hypotheses concerning the interactions among crabeater seals, leopard seals, and killer whales". Journal of Mammalogy. 58 (3): 414–416. doi:10.2307/1379341. JSTOR1379341.
Cox, C. R.; Le Boeuf, B. J. (1977). "Female incitation of male competition: A mechanism in sexual selection". The American Naturalist. 111 (978): 317–35. doi:10.1086/283163. JSTOR2460066. S2CID84788148.
Riedman, M. L.; Le Boeuf, B. J. (1982). "Mother-pup separation and adoption in northern elephant seals". Behavioral Ecology and Sociobiology. 11 (3): 203–13. doi:10.1007/BF00300063. JSTOR4599535. S2CID2332005.
Campagna, C.; Le Boeuf, B. J.; Cappozzo, J. H. (1988). "Pup abduction and infanticide in southern sea lions". Behaviour. 107 (1–2): 44–60. doi:10.1163/156853988X00188. JSTOR4534718.
Johnson, W. M.; Karamanlidis, A. A.; Dendrinos, P.; de Larrinoa, P. F.; Gazo, M.; González, L. M.; Güçlüsoy, H.; Pires, R.; Schnellmann, M. "Monk Seal Fact Files". monachus-guardian.org. Retrieved 9 September 2013.
Kruger, O.; Wolf, J. B. W.; Jonker, R. M.; Hoffman, J. I.; Trillmich, F. (2014). "Disentangling the contribution of sexual selection and ecology to the evolution of size dimorphism in pinnipeds". Evolution. 68 (5): 1485–1496. doi:10.1111/evo.12370. PMID24475921. S2CID37919557.
Kastak, D.; Schusterman, R. J. (1998). "Low-frequency amphibious hearing in pinnipeds: Methods, measurements, noise, and ecology". The Journal of the Acoustical Society of America. 103 (4): 2216–2228. Bibcode:1998ASAJ..103.2216K. doi:10.1121/1.421367. PMID9566340.
Grant R, Wieskotten S, Wengst N, Prescott T, Dehnhardt G (2013). "Vibrissal touch sensing in the harbor seal (Phoca vitulina): how do seals judge size?". Journal of Comparative Physiology A. 199 (6): 521–531. doi:10.1007/s00359-013-0797-7. PMID23397461. S2CID14018274.
Miller, N. J.; Postle, A. D.; Orgeig, S.; Koster, G.; Daniels, C. B. (2006b). "The composition of pulmonary surfactant from diving mammals". Respiratory Physiology & Neurobiology. 152 (2): 152–68. doi:10.1016/j.resp.2005.08.001. PMID16140043. S2CID23633245.
Cook, F.; Rouse, A.; Wilson, M.; Reichmuth, M. (2013). "A California sea lion (Zalophus californianus) can keep the beat: Motor entrainment to rhythmic auditory stimuli in a non vocal mimic". Journal of Comparative Psychology. 127 (4): 412–427. doi:10.1037/a0032345. PMID23544769. S2CID34580113.
Jøn, A. Asbjørn (1998). "Dugongs and Mermaids, Selkies and Seals". Australian Folklore: A Yearly Journal of Folklore Studies (13): 94–98. Retrieved 30 October 2015.
Kruger, O.; Wolf, J. B. W.; Jonker, R. M.; Hoffman, J. I.; Trillmich, F. (2014). "Disentangling the contribution of sexual selection and ecology to the evolution of size dimorphism in pinnipeds". Evolution. 68 (5): 1485–1496. doi:10.1111/evo.12370. PMID24475921. S2CID37919557.
Grant R, Wieskotten S, Wengst N, Prescott T, Dehnhardt G (2013). "Vibrissal touch sensing in the harbor seal (Phoca vitulina): how do seals judge size?". Journal of Comparative Physiology A. 199 (6): 521–531. doi:10.1007/s00359-013-0797-7. PMID23397461. S2CID14018274.
Miller, N. J.; Postle, A. D.; Orgeig, S.; Koster, G.; Daniels, C. B. (2006b). "The composition of pulmonary surfactant from diving mammals". Respiratory Physiology & Neurobiology. 152 (2): 152–68. doi:10.1016/j.resp.2005.08.001. PMID16140043. S2CID23633245.
Cox, C. R.; Le Boeuf, B. J. (1977). "Female incitation of male competition: A mechanism in sexual selection". The American Naturalist. 111 (978): 317–35. doi:10.1086/283163. JSTOR2460066. S2CID84788148.
Reiter, J.; Panken, K. J.; Le Boeuf, B. J. (1981). "Female competition and reproductive success in northern elephant seals". Animal Behaviour. 29 (3): 670–687. doi:10.1016/S0003-3472(81)80002-4. S2CID53144427.
Riedman, M. L.; Le Boeuf, B. J. (1982). "Mother-pup separation and adoption in northern elephant seals". Behavioral Ecology and Sociobiology. 11 (3): 203–13. doi:10.1007/BF00300063. JSTOR4599535. S2CID2332005.
Cook, F.; Rouse, A.; Wilson, M.; Reichmuth, M. (2013). "A California sea lion (Zalophus californianus) can keep the beat: Motor entrainment to rhythmic auditory stimuli in a non vocal mimic". Journal of Comparative Psychology. 127 (4): 412–427. doi:10.1037/a0032345. PMID23544769. S2CID34580113.