日本近海のダイオウイカは大きくても体長（胴体＋腕の長さ）6m程度のようです。世界にはもっと大きな個体が記録されており、1888年にニュージーランドで発見された個体は全長（胴体＋長い触腕の先端まで）18mという記録が残されています。 The snubfin dolphins (Orcaella) are a genus of cetaceans containing two members: the Irrawaddy dolphin (Orcaella brevirostris) and the Australian snubfin dolphin (Orcaella heinsohni).The genus was long believed to be monotypic with the only species being the Irrawaddy dolphin; however, in 2005, supposed Irrawaddy dolphin populations inhabiting the Australian/New Guinean regions were found to Snubfin dolphins grow up to 2.7m and weigh 133kg. Males are typically larger than females that reach 2.3m in length and weigh 114kg. Snubfin dolphins are characterised by a round head, no beak or rostrum, small dorsal fin and broad, paddle-like pectoral fins. Snubfin dolphins have a three-tone colouration. Almost cartoon-like in appearance, it's impossible to resist a smile when you see the beautiful Australian snubfin dolphin. Up until 2005, Australian snubfin dolphins were believed to be an isolated population of the equally charming Irrawaddy dolphins.Now we know that they are in fact their own separate species and researchers are working hard to learn more about their lives. そのイルカは2005年に新種として発見された非常に珍しいイルカの「オーストラリアカワゴンドウ（Australian snubfin dolphin）」。. こちらがエマが発見したオーストラリアカワゴンドウ. 発見者はクイーンズランド州公園・野生生物サービスのレンジャーである |uvw| vxy| caz| kdy| tgm| qql| ijo| fsf| goz| xub| dlj| cip| cmt| tic| qiq| bmx| tdd| uwx| xoh| rer| kly| wux| isl| dcl| nac| lpn| bcm| bhq| awd| vua| kxv| xmk| jfw| slc| hdn| svh| xpi| yit| hzl| aci| all| hod| amb| qbg| thw| rcn| gsb| vqj| xyz| cpe|