Marine Biology
Bleached coral (Eusmilia fastigiata) on a Caribbean Reef. Image: Christine Loew/Marine Photobank

Mysterious bleaching

The smooth coral flower (Eusmilia fastigiata) usually varies in colour from shades of yellow-grey to brown with blue-green tinting and white tentacles, but this particular specimen found on a reef in the Caribbean…

A male gambusia. Image: Bart Adriaenssens

Changing climate could affect pest fertility

A noxious fish species could benefit from increasing temperatures.

Small-eye pigmy sharks' derbellies are covered in tiny, light-emitting photophores that are able to fill their revealing silhouettes. Image: © Dr J. Mallefet / Dr J.Claes FNRS/  UCL

Glowing can be an effective camouflage

Small-eye pigmy sharks’ bellies shine to disguise them from predators.

Best Overall: Orange headshield sea slug

2012 University of Miami Underwater Photography Contest

Breeding these seadragons is seen as a great achievement. Image: Sydney Aquarium

Baby Weedy Seadragons

Sydney Aquarium’s four baby Weedy Seadragons made their debut this week.

Warmer temperatures cause corals to bleach and die. Image: Shutterstock

An unlikely survivor

Coral reefs could survive in more acidic oceans.

giantsquid

Giant and colossal squids have super-powerful eyes

Giant and colossal squids have soccer-ball-sized eyes that detect large moving objects at 120 metres.

The submarine will descend at about 5 knots (150 metres) a minute. Image: Telstra

Uncovering the secrets of the deep ocean

After six years of research and preparation, James Cameron and his crew are ready to take a plunge into the Earth’s final frontier.

Why carnivores don’t taste sweets

Not all animals have a functioning sweet taste receptor.

foram

Benthic foraminifera

This foram survived a mass extinction event, only to disappear nine million years later.

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