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What did you learn today?

Along the same lines, from scientists [who] say the Great Barrier Reef is getting 'tougher' as seas get warmer.

Great Barrier Reef's 'huge transformation' to adapt

In the last two bleaching events in 2016 and 2017, about half the coral on the Great Barrier Reef was estimated to have died.

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Bleaching in 2016 was more severe than 2020, but was concentrated in the north of the Great Barrier Reef.(Supplied: ARC Centre of Excellence for In those events, the areas hit hardest were in the remote northern stretches of the reef, around Lizard Island and beyond. The southern and central reef had mostly been spared. This time those parts were not so lucky.

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Coral bleaching at Magnetic Island, around the centre of the Great Barrier Reef.(Supplied: Victor Huertas)

"For the first time, the [Great] Barrier Reef has bleached in all three major regions: in the north, in the central region and in the southern regions," Professor Hughes said.

He said this time we might see coral die in the southern stretches in a similar way to what happened in the northern region a few years ago.

Professor Hughes said one reason the north did not bleach so badly was because global warming was rapidly transforming its makeup.

"Quite frankly, [I'm] astonished by the speed of these changes," he said.

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This year's bleaching event was the second worst on record.(Supplied: ARC Centre of Excellence for Coral Reef Studies)

"What we're seeing on the Great Barrier Reef now is a huge transformation in the mix of species.

"We're seeing less and less of the heat-sensitive, susceptible species — the so-called losers — compared to the tougher corals, which are persisting.

"The Great Barrier Reef is transitioning to a new mix of species that are tougher.
 
Just found a lovely place for a dip, and a few cleansing ales …​

View attachment 3864219
… soon to be renamed.​

Let's just call it paradise, for the time being.

Reminds me of swimming at Jim Jim Falls in Northern Australia. People were waving and shouting for me to get out....after they saw a crocodile in there too.

(Saltwater crocs are the dangerous ones, this one was probably a freshwater crocodile).