A pod of beluga whales diving to feed in Hudson Bay, Manitoba, Canada. The whale nearest to the photographer is releasing air to aid its descent.

水下游动的白鲸，加拿大

加拿大马尼托巴湖的哈德孙湾中，一群白鲸潜入水中捕食，距离摄影者最近的一头鲸鱼正在排出气体以帮助自己下潜。