April 2013

Shark behaviour affected by full moon

In a new study, scientists have revealed the diving behaviour of sharks appears to be influenced by the moon, water temperature and time of day. The study was conducted with grey reef sharks, a species commonly found on coral reefs in northern Australia and the Indo-Pacific. Tagged near Palau, about 40 grey reef sharks consisting mostly of adult of females were followed by scientists from UWA and the Australian Institute of Marine Science, who recorded their movement and diving patterns over a two-year period.

Zebrafish

Human and zebrafish genomes remarkably similar

Although they may seem like a strange comparator to humans, zebrafish share a majority of the same genes with humans, making them an important model for understanding how genes work in health and disease.

In a recent study published in Nature, researchers have identified 70% of protein-coding human genes to be related to genes found in zebrafish. Some 84% of genes known to be associated with human disease have a zebrafish counterpart, highlighting the importance of zebrafish as a model organism for human disease research.

So You Want to Be a Scuba Instructor ...

… just as soon as you get OW certified!?

Do you remember your first reaction to being able to breathe underwater? What was the first thing you wanted to do when you caught sight of a coral head liberally seasoned with tiny, multi-colored bait fish? When your instructor handed you your very first c-card, did you get a strong urge to swap places with them?