by Sixgill sharks get their name from their six gill slits (no surprise there). Other familiar species, like blacktip reef sharks, bull sharks, blue sharks and hammerhead sharks, only have five gill slits.
(Side note: there is another species of shark called the sevengill that has—you guessed it—seven gills slits.)
Sixgill sharks can reach up to 16 feet (4.9 meters) in length, making it one of the largest sharks in the ocean.
They come up to the surface at night to search for prey, but can dive down 8,200 feet (2,500 meters) or more during the day.
Source
(Side note: there is another species of shark called the sevengill that has—you guessed it—seven gills slits.)
Sixgill sharks can reach up to 16 feet (4.9 meters) in length, making it one of the largest sharks in the ocean.
They come up to the surface at night to search for prey, but can dive down 8,200 feet (2,500 meters) or more during the day.
Source
