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Whales of the same species breed with whales of the same species.
If whales crossbreed, it is not evident to the researchers who
study whales.
If we do discover whales crossbreeding, it may be due to the fact that
the whales in questions are really the same species and not two as
previously thought. Scientists have been surprised by this fact in the
past with many birds and other mammals that appear different, but in
reality were different races of the same species.
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