10. Ghost shark caught on camera for the first time
In December 2016, the Monterey Bay Aquarium Research Institute (MBARI) released a video of the blue-nosed chimanera. According to scientists, this is the first time a chimanera, a species of ghost shark, has been filmed. More specifically, this time the chimanera was caught in the waters off the coast of California, in the northern hemisphere, while previously it was believed that this creature only lived on the rugged seabed of the southern hemisphere. Like other sharks, the skeleton of the chimaera is made of cartilage. However, the chimaera does not possess jagged teeth like its fellows, but uses its mineralized teeth to chew food such as mollusks and insects. The small dots around the head of the chimaera are believed to be sensory organs that help them locate prey. The male chimaera also has another interesting identifying feature: retractable genitals on the forehead.