The Evolution of the Whale

The blow or the spout of the whale is very distinctive with larger whales. It can be categorized by height, shape, and visibility. An experienced whale watcher has to take into account various factors, such as wind, rain, air temperature, light quality. We'll see what critics were saying about all that will happen on this week's two-parter. In the meantime, if you would like to check out some other areas surrounding a whale’s spout, please visit our website at CNN.com/whales.