A titan triggerfish aggressively defends it's nest of eggs in the sand.

aggression animal animal behavior animal den animal eggs animal head animal nest animal themes animals in the wild aquatic balistidae balistoides viridescens color image day defending ecosystem egg egypt environment fish fish eggs front view habitat horizontal ichthyology large marine biology nest nesting no people north africa one animal osteichthyes outdoors photography pink portrait red sea sea life titan triggerfish triggerfish tropical fish underwater wide angle wildlife zoology