![](http://www.ecns.cn/hd/2020/05/21/168cb49ae62746dcb08ac7e01683873f.jpg)
A dolphin jumps in the Bosphorus Strait during spring season in Istanbul, Turkey. (Photo/IC)
![](http://www.ecns.cn/hd/2020/05/21/9b44d14f7370404283bbef91c49e0ff2.jpg)
Dolphins jump in the Bosphorus Strait during spring season in Istanbul, Turkey. (Photo/IC)
![](http://www.ecns.cn/hd/2020/05/21/717b182d51e24ab68e71465160307375.jpg)
A dolphin jumps in the Bosphorus Strait during spring season in Istanbul, Turkey. (Photo/IC)