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Homologous add Perhaps to a human's foot.
they are called flippers
The presence of homologous structures (for example, the bone structure in chimpanzee arms, human arms, and whale flippers) indicates that the species sharing that homologous structure share a common ancestor.
They are examples of vestigial structures: structures that appear to be useless but once most probably had a function
Swimming
flippers
it helps them swim
yes to swim around
it moves by using it's flippers and back.
the beluga it with its tail and flippers
The Blue Whale has a small Dorsal Fin as well as its Flukes (tail) and its Flippers.
Whales are actually very close to birds. You see, birds and whales both have structures called homologous structures (H). H-structures are mainly bone structures in an animal that are very similar to other creatures. If you look at the bones and their structure in the whales fins and flippers you will see that they are nearly identical to that of a birds wing.