Aquatic Life

The Cookiecutter Shark

After attracting hungry, larger animals with its bioluminescent belly, the cookiecutter shark spins around and takes a bite out of them instead. These sharks have even attacked nuclear submarines, causing enough damage to merit a return to port.

Advertisement

Love getting smarter? Sign up for our newsletter to learn something new every day!

Share the knowledge!

Key Facts In This Video

  1. The cookiecutter shark is classified as a parasite. 00:03

  2. The cookiecutter shark attracts prey with its bioluminescent stomach. 01:07

  3. Cookiecutter sharks leave their telltale circular marks on seals, whales, dolphins, other sharks, and even submarines. 01:42

Advertisement