While diving with a friend in Melbourne's southern Port Phillip bay, underwater videographer Jarrod Boord spotted a vigilant cuttlefish mother playing sentry over her unhatched babies.
The 37-year-old's footage shows the mother keeping a close eye on the camera as she shields her eggs and changes color to fend off potential predators.
The award-winning cinematographer notes that he did not physically disturb the cuttlefish or her eggs during the dive.