ケナガマンモス

📖 1. 概要

最大4.2mの長さの湾曲した牙と長い毛で氷河期の極寒を生き抜いた、新生代を代表する長鼻目の大型哺乳類です。

🌐 Wikipedia 要約抜粋

The woolly mammoth is an extinct species of mammoth that lived from the Middle Pleistocene until its extinction in the Holocene epoch. It was one of the last in a line of mammoth species, beginning with the African Mammuthus subplanifrons in the early Pliocene. The woolly mammoth began to diverge from the steppe mammoth about 800,000 years ago in Siberia. Its closest extant relative is the Asian elephant. The Columbian mammoth lived alongside the woolly mammoth in North America, and DNA studies show that the two hybridised with each other. Mammoth remains were long known in Asia before they became known to Europeans. The origin of these remains was long debated and often explained as the remains of legendary creatures. The mammoth was identified as an extinct elephant species by Georges Cuvier in 1796.

🦴 2. 体の構造と特徴

熱の放出を抑える小さな耳と、低温下での酸素運搬に特化したヘモグロビンタンパク質を進化させました。

🔍 3. 化石記録と古生態

シベリアの永久凍土層から見つかった冷凍標本を通じて、全ゲノム（Genome）の解読が完了しています。

🇰🇷 4. 韓国との関わり

咸鏡北道吉州郡および東海の海底、全羅北道扶安でケナガマンモスの臼歯や牙の化石が出土しています。