Majestic, blue and incredibly huge! Check out this blue whale diving at the end of the video and see how quickly it blends back into the depths. Even though blue whales are the largest animal to ever live on Earth, this shows how they can actually be difficult to spot. But since they are mammals, blue whales have to come to the surface to breathe which allows us to catch a glimpse at these ocean giants. This particular whale was estimated to be a mere 22 meters (75 feet) long. Sure that's huge f

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