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Anyway this log is a gift from the ocean, much appreciated by the kids ......
As a biologist I worked on a group of weevils that have managed to colonise the remotest islands of Polynesia and even diversify across the Pacific, without having wings or any obvious means of dispersal. It had been suggested that they moved around by hitchhiking on birds, or on drifting vegetation. It always seemed hard to imagine, so it's nice to see some proof of such phenomena(though any living insects would have got a good drenching on this ride). We also frequently find pumice on the beach (a volcanic rock that is light as a feather, produced by explosive volcanic eruptions), again I have no idea where it comes from, though a likely suspect must be the active volcanoes found in Vanuatu (Yasur and Ambrym). This little lump of floating rock must have been on the ocean for a while, long enough to develop several colonies of bryozoans (small encrusting marine invertebrate), not surprising if it is actually from Vanuatu, as it must have done a big tour on the South Pacific Ocean gyre, riding the big circular current before arriving here!