Dolphins usually are specified as mammals!
I’ve added them to the playlist “Fishes” because of their looking like an art of fishes…
Playlist: Fishes: https://www.youtube.com/watch?v=G9PwLUxbq-c&list=PLijaYnCdOVgYi9TUT1AiNMZHzZlAavnBd
Great holidays in Egypt..