worth developing larger mounds and bodies to take advantage of the expanded menu. there are large sized 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 but only eight. do you have a science question that you've always wanted alan said we're happy to help out send it to us as a video text over a smell if we aren't so it on the show will send you a little surprise as a thank you cannot just ask. you can write to us on our website at t w dot com slash science or give us a shout out on twitter and facebook. although not quite as large as