Suspicions arose that there was more than one kind of Bryde’s whale from observations initially made in Korean whale meat markets. This led Yamada’s group to test tissue samples taken from eight suspiciously different whales harvested for meat in 1970, as well as a sample from a carcass that washed ashore in 1998. Now that he knows what to look for, Yamada is currently aware of ten B. omurai specimens stored in museums around the world that have been misclassified as Bryde’s whales.