The fins on a dolphin, whale, shark, basically all marine life, have evolved in such a way as to exemplify their strengths. A dolphins strength is to be fast and agile. Their fins help them to navigate the waters in the most energy efficient maner. Their flukes (tails) are incredibly strong and help to propel them through the ocean/lakes/and rivers. Also the dolphins fluke moves up and down, not side to side like a shark.
Dolphins have flippers because they are useful for navigating in water. Since dolphins live their whole lives in the water, they do not need feet. Flippers are useful for steering.
They use their Back tail flippers, moving it up and down. I think they also use their fins/flippers.. I dont know
Fins. no it has flippers because fish have fins and a whales are not fish they're mammals
Okay, this question makes no sense. Swans do not have any flippers. Only seals and dolphins and animals like that have flippers.
Dolphins, whales, fish, and others
They do have the same type and amount of bones, but the overall form and function is obviously different. Our hands are used for grabbing stuff, a dolphin's flipper is used for steering in water. ^^
They have them to steer. Going in a straight line would get boring after a while! Don't you think?
'Flippers' ,
dolphins do not have legs. they have flippers to paddle themselves in swift water flow or just in any waters that they live in.
Whales are not known to attack Dolphins. If one would ever decide to, they haven't got much to choose from, either ram them or swipe them with their flippers or fluke.
Other animals that have flippers include dolphins, whales, seals, sea lions, and sea turtles. Flippers are specialized limbs that help these animals navigate through water efficiently.
They have no common because Penguins are much smaller