With up to 10m tides, the Kimberley region in north Western Australia has the largest tropical tides in the world, creating naturally extreme and highly dynamic coastal habitats that corals from more typical reefs could not survive.

Researchers at the University of Western Australia's Oceans Institute were thus surprised to find that corals from the region are just as sensitive to heat stress and bleaching as their counterparts from less extreme environments elsewhere.

Satellite telemetry suggests that seamounts represent an overlooked cryptic habitat for humpback whales

Seamounts probably serve multiple and important roles as breeding locations, resting areas, navigational landmarks or even supplemental feeding grounds for this species, which can be viewed as a transient component of the seamount communities.

Residents of Stewart Island, New Zealand have pleaded for politicians to halt shark cage diving in their waters. The residents and paua divers have expressed fears that the cage diving is attracting great white sharks to the area and putting them at risk, saying they live in fear of a fatal shark attack.

The researchers found that lookdown fish camouflage themselves through a complex manipulation of polarized light after it strikes the fish's skin. In laboratory studies, they showed that this kind of camouflage outperforms by up to 80 per cent the "mirror" strategy that was previously thought to be state-of-the-art in fish camouflage.

The open ocean represents a challenging environment for camouflage,There are no objects to hide behind in three-dimensional space, so organisms have to find a way to blend in to the water itself.