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octopus intelligence

The most intelligent invertebrate – what can the octopus do?

The octopus is believed to be the most intelligent of all invertebrates. As well as its relatively large brain, each of the octopus' eight...
Xenid pulsating coral

Why does one Soft Coral Pulsate?

Researchers solve some of pulsating soft coral (Xenid) mysteries, but their siestas still unanswered.
Great white shark

Tags reveal Great White Sharks’ Beat

A tracking study of white sharks in the northeastern Pacific Ocean shows they follow a rigid migration route across the sea, returning to precisely...

How Healthy are Mediterranean Rocky Reefs?

Intense exploitation over millennia has depleted Mediterranean Sea species from the large to the small. What would a ‘healthy’ Mediterranean rocky bottom look like? There are no pristine sites (i.e. undisturbed by humans) left in the Mediterranean against which to compare the health of current ecosystems. SCUBA divers surveyed the rocky reefs throughout the Med, from Morocco to Turkey.
Grey shark

More fish in Indonesia shark sanctuary but fishermen turning to crime

Good news for Indonesia's shark sanctuary: sharks and other fish are more abundant within zones with fishing restrictions according to a new study. Bad...
AUV

Underwater Robots Make Independent Decisions

Submarine robots can act independently, finding and following squid.
Loggerhead Turtle, Caretta caretta

Loggerhead turtles home in on nests magnetically

Mother turtles find their way back to nesting beaches by looking for unique magnetic signatures along the coast, according to a new study published...

A Million Species in the Oceans?

The oceans may be home to nearly a million marine species but two thirds of them remain undescribed.
White tip reef shark

Will Marine Reserve Protect Coral Sea Sharks?

Shark fishing needs to be banned at Osprey and Shark Reef in the Coral Sea for a Marine Reserve to work, concludes a study published yesterday. It is estimated that each year, live-aboard dive boats are directly responsible for generating at least AU$16 M worth of income. Of all the Coral Sea reef systems, Osprey Reef has the highest visitation rate by tourism operators, primarily to conduct shark dives. So, the depletion of reef sharks at Osprey Reef would have serious financial ramifications for the area. To put this into perspective, in the Maldives, the removal of only 20 grey reef sharks, with a market value of only AU$1 000, caused an estimated loss of AU$500 000 annually in diving revenue.

Cuckoldry incites cannibalism: Male Fish eat offspring

When a male fish is uncertain that he is the father of a clutch of eggs, he is likely to eat those eggs, according...