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Our planet is full of different ecosystems, each containing their own unique flora and fauna. Our world is far from the only one out there; in fact, we only know a fraction of it. From blue whales to giraffes and everything in between, our planet contains a vast amount of species that we may never get the chance to see up-close – unless you’re lucky enough to visit places like Africa or Australia. But even if you don’t travel as much as you’d like, there are plenty of ways for you to learn more about these incredible species online. Some of the most interesting and well-known creatures in the world live in the depths of our oceans. These animals are sometimes called “the forgotten frontier” by oceanographers, who spend months at a time just studying them. The ocean is filled with not just fish and mammals, but also an entire world that we know nothing about. Here, we bring you five fascinating facts about one such creature: sperm whales. Sperm whales are the largest species of toothed whale, and they call all oceans their home — even though they tend to prefer warmer waters than others do. These whales are also the deepest-diving mammals, able to stay underwater for up to two hours at a time. But it’s their spermaceti organ that fascinates researchers most. Long thought to be a sperm whale’s nose, the organ is actually much bigger than that, and serves another purpose entirely. 1) The Sperm Whale Has A Sensory Organ That Can Be Used As A Sonar The sperm whale, despite being one of the largest species in the world at around 30 meters long, is able to swim at speeds of up to 34 kilometers per hour. Not only that, but this species of whale can dive up to 2,740 meters deep. Together, these traits make it the deepest-diving mammal on the planet. But all these factors also make it extremely difficult to study. Researchers spend months at a time on research vessels with very limited access to the animals. Even if they manage to get back up with blood samples or some other type of tissue sample, there’s not much else they can do with them. That is, unless they use the sperm whale’s naturally-produced sonar to track them down. Researchers use this sonar (which is similar to the echolocation used by bats) to make maps of the ocean floor, and can even use it to track down objects like submarines. But it’s not just useful for tracking movements; it seems that sperm whales are actually able to communicate through this sonar as well. cfa1e77820