Passage: Blue whales are rorquals (family Balaenopteridae), a family that includes the humpback whale, the fin whale, Bryde's whale, the sei whale, and the minke whale. The family Balaenopteridae is believed to have diverged from the other families of the suborder Mysticeti as long ago as the middle Oligocene (28 Ma ago). The blue whale lineage diverged from the other rorquals during the Miocene, between 7.5 and 10.5 million years ago. However, gene flow between the species appears to have continued beyond that date. The blue whale has the greatest genetic diversity of any baleen whale, and a higher than average diversity among mammals. The earliest known anatomically modern blue whale is a partial skull fossil found in southern Italy, dating to between 1.25 and 1.49 million years ago. The whale is estimated to have been between 23.4 and 26.1 meters (76.8 to 85.6 ft) long in life. This finding overturns a previous hypothesis that baleen whales rapidly reached their modern sizes at 300,000 years ago, with the most likely date being a more gradual change around 3.6 million years ago, possibly earlier.The blue whale is usually classified as one of eight species in the genus Balaenoptera; one authority places it in a separate monotypic genus, Sibbaldus, but this is not accepted elsewhere. DNA sequencing analysis indicates that the blue whale is phylogenetically closer to the sei whale (Balaenoptera borealis) and Bryde's whale (Balaenoptera brydei) than to other Balaenoptera species, and closer to the humpback whale (Megaptera) and the gray whale (Eschrichtius) than to the minke whales (Balaenoptera acutorostrata and Balaenoptera bonaerensis).There have been at least 11 documented cases of blue whale-fin whale hybrid adults in the wild. Arnason and Gullberg describe the genetic distance between a blue and a fin as about the same as that between a human and a gorilla. Researchers working off Fiji believe they photographed a hybrid humpback-blue whale including the discovery through DNA analysis from a meat sample found in a...

Question: What whales are included as Blue whales?
humpback whale, the fin whale, Bryde's whale, the sei whale, and the minke whale