Kraken

The kraken uses bioluminescence to hunt prey such as feroxes, large fish like sharks and other squid in the deep ocean but also feeds on plankton,. The kraken is thought to have a slow metabolic rate, requiring only around 30 grams of prey daily. Kraken specimen have ranged up to 15 meters in length for females and 12 metres for males from caudal fin to the tip of the two long tentacles.

It's main predator is the sperm whale.