Blue Whale Facts: Complete Guide To The Largest Animal That Has Ever Lived

11 Facts About Blue Whales, the Largest Animals Ever on Earth

🎥: bluelifewild · A hungry blue whale lunge feeding on krill. These small shrimplike crustaceans are perhaps the most well known type of zooplankton in the ocean, and provide a vital food source for baleen whales. A single blue whale can eat 40 million krill - or 8,000 lbs of krill a day! Taken aboard Gone Whale Watching San Diego | Ocean Conservation Research - OCR

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