narwhal
US /ˈnɑːr.wəl/
UK /ˈnɑːr.wəl/
1.
イッカク
a small Arctic whale, the male of which has a single, very long, spirally twisted tusk projecting from its head.
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The narwhal is often called the 'unicorn of the sea' due to its distinctive tusk.
イッカクは、その特徴的な牙のために「海のユニコーン」とよく呼ばれます。
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Scientists are studying the purpose of the narwhal's long tusk.
科学者たちはイッカクの長い牙の目的を研究しています。