@@doconyoutube2365They are mammal same like cats or dogs but whale and dolphin went through extreme evolution until they have to live in the sea. And Fyi,The female breastfeed they are baby same like mammal live in the land!!
Dolphins and whales are cetaceans, a mammal that has involved into fish form.... parallel evolution, something that is very common in Earth's natural history. Interestingly in marine biology there is actually no such thing as a fish. It's just a common usage language label, which is translated into different languages. Also interestingly large sharks don't lay eggs, they product live young like dolphins and whales. Still love the video. 🦈🐬🐋🐟🐠🐡❤
День добрый! Почему первая рыбка с размером в 10мм показана как 2,5-3мм (если судить по размеру клеток)? Тогда вторая будет отличаться по размерам не в 12-16 раз, как на видео, а в 4 раза!)
