It is thought to be a signal of reproductive arousal or aggression, similar to the " zebra display " behaviour of " Sepioteuthis sepioidea ", the " intense zebra display " behaviour of " Sepia officinalis ", and the " lateral display " of " Loligo plei ".
22.
The pyjama shark feeds on a wide variety of small animals, including bony fishes such as anchovies, chokka squid ( " Loligo vulgaris reynaudi " ), which occur unpredictably year-round but peak from October to December, pyjama sharks deviate from their nocturnal habits and gather in substantial numbers inside the squids'" egg beds " during daytime.
