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

Blue whale – Australian Antarctic Program

The anatomy of a whale | BBC Earth

Blue whales have a humongous lung capacity. With each breath, they can take in about 5,000 liters (1,320 gallons) of air 🤯 (imagine if that was helium 🤣) Their respiratory system is incredibly efficient, allowing them to exchange up to 90% of the oxygen in their lungs with each breath (compared to about 15% in humans). This efficiency enables them to remain submerged for extended periods, with dives lasting up to 30 minutes or more, though typical dives are shorter of around 10 to 20 minutes,

Animals 101: Blue Whales

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