Summary:
- The article examines the unique predatory behavior of the cookiecutter shark (*Isistius brasiliensis*), a small deep-sea shark that utilizes specialized suction-cup lips to attach to much larger marine animals.
- It details the shark's distinct feeding mechanism, which involves rotating its body to excise circular plugs of flesh from prey, as well as its bioluminescent counter-illumination strategy used to camouflage itself while hunting.