Manta ray - Manta ray

…They usually give birth to about eight babies per litter. The closely related Atlantic manta ray, Manta birostris , is also known as manta ray, and has a body width of 5 to 6 meters. Sometimes hundreds of them are seen swimming in schools. They are also often seen jumping into the air, and it is said that this is when they give birth to their fetuses. …

*Some of the terminology that refers to "manta ray" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…ふつう1産8尾ほどの子どもを生む。近縁種の大西洋産オニイトマキエイManta birostrisはマンタともいい，体板の幅が5～6mになり，ときには数百尾が群泳するのが目撃される。また，空中に跳び上がる行動もしばしば観察され，このときに胎児を生み落とすといわれる。…

※「オニイトマキエイ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報