gray whale

1. Historical Records and Current Status of Western Gray Whale in China Waters
   中国水域灰鲸种群历史记录和现状分析
2. Some of the kinds of whales are the blue whale, the humpback, the gray whale, and the white whale.
   鲸鱼的种类还包括蓝鲸，座头鲸，灰鲸和白鲸。

noun

1. medium-sized greyish-black whale of the northern Pacific

   Synonym:    grey whaledevilfishEschrichtius gibbosusEschrichtius robustus