It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
1. Hagfish are scaleless with soft skin. The skin of the hagfish has been described as covering its body like a loosely fitting sock. Colors vary with the species, and range from pink to blue-gray.
2. They have four hearts. Hagfish have a primitive circulatory system that has four hearts: one serves as the main pump, while the other three serve as accessory pumps.