One of the most fascinating facts about these animals is that they reach such mind-boggling size by almost exclusively consuming tiny shrimp like organisms called krill. During feeding season, they can eat 7936 pounds of them a day. In fact, their feeding type is the reason for their size. Since it inhabits cold and deep regions of the Southern Ocean ranging from 66 to 6,562 feet deep, scientists have never succeeded in observing the biggest invertebrates (organisms without a backbone) in their natural habitat. They only get a good look at them when fishermen accidentally catch them in the nets. Follow Bored Panda on Google News! Follow us on Flipboard.com/@boredpanda! Please use high-res photos without watermarks Ooops! Your image is too large, maximum file size is 8 MB.