Webwhile a whale with gills may have more fitness than a lung-breathing whale, this does not mean that the trait has to evolve. when the mutations which are the basis for evolutionary change occur, they occur randomly. the genome does not "know" to mutate in a certain way to make the animal more adapted to the environment. in whales, the necessary … WebJan 29, 2024 · Blue whales are mammals. We are mammals, too, so both humans and blue whales are endothermic (commonly called "warm-blooded"), give birth to live young and nurse their young. Whales even …
How Do Gills Work? - Ocean Conservancy
WebIf the name didn't make it obvious enough, let's be clear: Chinese water deer really like water. These critters have been known to swim for up to seven miles before getting tired. It's actually ... WebAnswer 2: Whales are mammals because they give birth to live young, they have fur (although it is very sparse on their body), they have lungs and breath air and they provide milk for their young. Answer 3: You have a lot of interesting questions about marine mammals. Dolphins and other whales are all mammals called cetaceans. the joanna project
How Do Whales Breathe? Whale Facts
WebGills are not present in higher animals. – WYSIWYG Feb 23, 2015 at 16:50 2 @Cliff It is because whales would require too many mutations to restructure their respiratory and cardiovascular system to develop back gills whereas they could survive in an aquatic environment with lungs and few mutations. WebMar 7, 2024 · Whales are aquatic mammals, not fish, so they do not have gills like many other water-dwelling species. Instead of gills that extract oxygen from the water, whales … WebWhales live in water despite not having gills because they have evolved over millions of years from ancestors who lived on land. Their ancestors with lungs adapted very little by … the jiu jitsu academy evansville