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Humpback whale with bubble net

Whales pass on knowledge

A team of researchers, led by the University of St Andrews, has discovered that a new feeding technique has quickly spread to 40 per cent of a humpback whale population. Humpbacks around the world herd shoals of prey by blowing bubbles underwater to produce 'bubble nets'.

The feeding innovation, called 'lobtail feeding', involves hitting the water with the tail before diving to produce the bubble nets. Lobtail feeding was first observed in 1980, after the stocks of herring, previously the main food for the whales, became depleted.

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 adults 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.

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?

British Columbia's Southern Gulf Islands

Located between the lower part of Vancouver Island and Mainland Vancouver in the Strait of Georgia, the Southern Gulf Islands of British Columbia, Canada, are made up of over 12 large islands and several smaller ones. The larger, more populated islands are accessible by taking an auto ferry from the Mainland to Nanaimo or to Sidney, just north of Victoria. Visitors can spend a day or several exploring by car, bike or hiking.

Diving with Seals of the Farne Islands

Aerial view (right) of the Farne islands

The Farne Islands are a small group of some 33 rocks and islets (depending on the state of the tide which has a rise and fall of over 6m or 20ft) located off the north Northumberland coast of England. At full tide, only 23 larger rocks and islands are visible, but all of those are eye catching. The entire group are a National Trust protected area and have numerous wildlife preserves, notably for their seabirds and seals.