years ago that they went through a growth spurt during the ice age oceanic temperatures dropped causing a disruption to establish currents. this led to an increased concentration of fish plantain and krill in some coastal regions. from an evolutionary perspective it was worth developing larger mounds and bodies to take advantage of the expanded menu. there are large size help whales cover great distances and hence get to food sources faster than competitors. so an abundance of food was the reason that whales eventually grew so big. crowd that is red white otter platen even a fish do you have a science question that you've always wanted alan said we're happy to help out send