{"Species":"Monachus schauinslandi","Male_brain_g":370,"Male_mass_Kg":173,"Female_mass_Kg":272.2,"Mate_type":"mono"}
{"Species":"Monachus monachus","Male_brain_g":480,"Female_brain_g":480,"Male_mass_Kg":260,"Female_mass_Kg":275,"Mate_type":"mono"}
{"Species":"Mirounga angustirostris","Male_brain_g":700,"Female_brain_g":640,"Male_mass_Kg":2275,"Female_mass_Kg":488,"Mate_type":"poly"}
{"Species":"Mirounga leonina","Male_brain_g":1431.3,"Female_brain_g":898.8,"Male_mass_Kg":3510,"Female_mass_Kg":565.7,"Mate_type":"poly"}
{"Species":"Leptonychotes weddelli","Male_brain_g":535,"Female_brain_g":637.5,"Male_mass_Kg":450,"Female_mass_Kg":447,"Mate_type":"poly"}
{"Species":"Ommatophoca rossi","Male_brain_g":425,"Female_brain_g":530,"Male_mass_Kg":153.8,"Female_mass_Kg":164,"Mate_type":"mono"}
{"Species":"Lobodon carcinophagus","Male_brain_g":578.2,"Female_brain_g":538.8,"Male_mass_Kg":220.5,"Female_mass_Kg":224,"Mate_type":"mono"}
{"Species":"Hydrurga leptonyx","Male_brain_g":765,"Female_brain_g":660,"Male_mass_Kg":324,"Female_mass_Kg":367,"Mate_type":"mono"}
{"Species":"Cystophora cristata","Male_brain_g":480,"Female_brain_g":430,"Male_mass_Kg":343.2,"Female_mass_Kg":222.5,"Mate_type":"mono"}
{"Species":"Erignathus barbatus","Female_brain_g":460,"Male_mass_Kg":312.5,"Female_mass_Kg":326,"Mate_type":"mono"}
{"Species":"Halichoerus grypus","Male_brain_g":342.5,"Female_brain_g":272.5,"Male_mass_Kg":233,"Female_mass_Kg":205.8,"Mate_type":"poly"}
{"Species":"Phoca groenlandica","Male_brain_g":297.5,"Female_brain_g":252.5,"Male_mass_Kg":145,"Female_mass_Kg":139,"Mate_type":"mono"}
{"Species":"Phoca fasciata","Male_brain_g":257.5,"Female_brain_g":240,"Male_mass_Kg":94.8,"Female_mass_Kg":80.4,"Mate_type":"mono"}
{"Species":"Phoca largha","Male_brain_g":257.5,"Female_brain_g":250,"Male_mass_Kg":97,"Female_mass_Kg":71.3,"Mate_type":"mono"}
{"Species":"Phoca caspica","Male_brain_g":165,"Female_brain_g":160,"Male_mass_Kg":70.5,"Female_mass_Kg":55,"Mate_type":"mono"}
{"Species":"Phoca sibirica","Male_brain_g":185,"Female_brain_g":190,"Male_mass_Kg":89.5,"Female_mass_Kg":85,"Mate_type":"mono"}
{"Species":"Phoca hispida","Male_brain_g":229.3,"Female_brain_g":220,"Male_mass_Kg":84,"Female_mass_Kg":81.2,"Mate_type":"mono"}
{"Species":"Phoca vitulina","Male_brain_g":362.3,"Female_brain_g":265,"Male_mass_Kg":97.1,"Female_mass_Kg":85.2,"Mate_type":"mono"}
{"Species":"Zalophus californianus","Male_brain_g":405,"Female_brain_g":361.5,"Male_mass_Kg":244.5,"Female_mass_Kg":81,"Mate_type":"poly"}
{"Species":"Eumetopias jubatus","Male_brain_g":747.5,"Female_brain_g":575,"Male_mass_Kg":1000,"Female_mass_Kg":287.5,"Mate_type":"poly"}
{"Species":"Otaria byronia","Male_brain_g":546.3,"Female_brain_g":470,"Male_mass_Kg":300,"Female_mass_Kg":144,"Mate_type":"poly"}
{"Species":"Neophoca cinerea","Male_brain_g":440,"Female_brain_g":337.5,"Male_mass_Kg":300,"Female_mass_Kg":78.6,"Mate_type":"poly"}
{"Species":"Phocarctos hookeri","Male_brain_g":417.5,"Female_brain_g":370,"Male_mass_Kg":364,"Female_mass_Kg":114.7,"Mate_type":"poly"}
{"Species":"Callorhinus ursinus","Male_brain_g":355,"Female_brain_g":302.5,"Male_mass_Kg":140,"Female_mass_Kg":33.3,"Mate_type":"poly"}
{"Species":"Arctocephalus townsendi","Male_mass_Kg":112,"Female_mass_Kg":49.6,"Mate_type":"poly"}
{"Species":"Arctocephalus philippii","Male_brain_g":415,"Male_mass_Kg":140,"Female_mass_Kg":48.1,"Mate_type":"poly"}
{"Species":"Arctocephalus galapagoensis","Male_brain_g":302.5,"Female_brain_g":280,"Male_mass_Kg":64.5,"Female_mass_Kg":27.4,"Mate_type":"poly"}
{"Species":"Arctocephalus australis","Male_brain_g":350,"Female_brain_g":265,"Male_mass_Kg":91,"Female_mass_Kg":48.5,"Mate_type":"poly"}
{"Species":"Arctocephalus forsteri","Male_brain_g":340,"Female_brain_g":300,"Male_mass_Kg":125,"Female_mass_Kg":38.1,"Mate_type":"poly"}
{"Species":"Arctocephalus gazella","Male_brain_g":360,"Female_brain_g":320,"Male_mass_Kg":155,"Female_mass_Kg":45,"Mate_type":"poly"}
{"Species":"Arctocephalus tropicalis","Male_brain_g":322.5,"Female_brain_g":330,"Male_mass_Kg":152.5,"Female_mass_Kg":50,"Mate_type":"poly"}
{"Species":"Arctocephalus pusillus","Male_brain_g":401.3,"Female_brain_g":337.5,"Male_mass_Kg":263,"Female_mass_Kg":64.1,"Mate_type":"poly"}
{"Species":"Odobenus rosmarus","Male_brain_g":1303,"Female_brain_g":1340.5,"Male_mass_Kg":1233,"Female_mass_Kg":811.5,"Mate_type":"poly"}