WOW! Stunning drone footage captures the gorgeous sight of a rare blue whale and her calf swimming off the shore of San Diego 🐋 | ABC 13 - WSET

A BLUE WORLD: Just-released drone video captured a blue whale calf swimming under and around a whale-watcher's boat near San Diego, California, Tuesday. https://abcn.ws/2FLyzTu | ABC World News Tonight with David Muir

Wow! Drone footage recorded on June 19 captured a curious blue whale swimming close to a boat off of the coast of San Diego and the whale’s sheer size would make anyone stare in awe. https://tinyurl.com/ybstsamx | FOX6 News Milwaukee

Blue whale vocalizations are very low frequency sounds with some in the 15 Hz range. These tones characteristically travel long distances due to the high power, but also due to very long-wavelengths (over 300 feet for 15 Hz). This enables their songs to be heard thousands of miles from the source. We can assume that the projection distance is important (Nature can be extravagant, but she is never wasteful), but we can only speculate why they need to broadcast their songs across ocean basins. The