Hybridization Blue whales are known to interbreed with fin whales. The earliest description of a possible hybrid between a blue whale and a fin whale was a anomalous female whale with the features of both the blue and the fin whales taken in the North Pacific. A whale captured off northwestern Spain in 1984, was found to have been the product of a blue whale mother and a fin whale father.
hybridization blue whales are known to interbreed with fin whales the earliest description of a possible hybrid between a blue whale and a fin whale was a anomalous female whale with the features of both the blue and the fin whales taken in the north pacific a whale captured off northwestern spain in 1984 was found to have been the product of a blue whale mother and a fin whale father