Many fish detect sound using a system called the lateral line, a network of tiny sensors running along their body. These sensors pick up pressure changes, vibrations, and water movement, allowing fish to sense predators, prey, and even distant disturbances without hearing in the human sense. Sound travels four times faster in water than in air, so vibrations reach fish long before anything is visible. Some species also use internal structures, like swim bladders, to amplify these vibrations. Ins

The fangtooth, or ogrefish, has extra-long, sharp teeth and a face only a mother could love. 💕⁠ This fierce-looking fish actually gets no bigger than the average adult human hand. The fangtooth is found in meso- and bathy-pelagic waters worldwide. Dark skin and scales provide camouflage in these dim ocean depths, assisting them with catching prey (fish, shrimp, and squid) and avoiding hungry predators (tuna and marlin). Their prominent lateral line system detects water movement and compensates