Australia secured a 2-0 lead in the Ashes series after brushing away the last feeble vestiges of English resistance to win the second Test by a thumping 218 runs.
Needing to bat all day to save the Test, England instead could not bat out the first hour as they lost their final four wickets for 65 in another unnecessary flurry of attacking shots.
Boycott fears England 'annihilation'
Only once before have England lost successive Tests by a margin of more than 200 runs, but after the
381-run thrashing in Brisbane
they are now in dire danger of ceding the Ashes to their rampant opponents.
With the third Test in Perth starting on Friday on a ground where Australia have
won the last six Tests between the two,
England need a turnaround of unprecedented proportions to keep the series alive.
All 10 of their second innings wickets here in Adelaide went to deliveries that would not have hit the stumps, just one of many chastening statistics in a contest that has thus far been entirely one-sided.
For Australia, without a win in their last nine Tests before this series and beaten in seven of them, it is a stunning turnaround.
Michael VaughanEx-England captain & Test Match Special summariser
"The Australians have played a great brand of cricket. If England are getting out playing the pull shot on a slow wicket, what's it going to be like at the Waca? I see a few technical flaws with England, but it's in their minds - unless they twist the mentality round, it's going to be 5-0."
Coach Darren Lehmann and captain Michael Clarke can take great credit for instilling belief in a side that looked bereft once they
went 2-0 down after two matches
in the corresponding series in England in the summer.
And while man-of-the-match Mitchell Johnson went wicketless on the final morning, his 17 wickets at an average of just 12.7 runs apiece have proved critical against an England side that is likely to see several changes for that third Test at the Waca.
There had been heavy rain in Adelaide in the morning, leading to hopes from the travelling support of an unmerited escape after Australia's domination of the first four days.
But the rain cleared quickly, delaying the start by just 10 minutes.
Only the second time England have lost successive Tests by more than 200 runs (last time was 1908, also in Australia)
Only one team in Test history has come back from two down to win a series
Only three times in Tests has a team come back to draw a series after trailing 2-0
Australia secured back-to-back Ashes wins for the first time since 2006-07 series
England have not passed 400 in their past 20 Test innings
Their batsmen have been out 21 times to leg-side catches in the series so far
Eight of those dismissals have been caught on the leg-side boundary
Mitchell Johnson has 17 wickets at an average of 12, the best Ashes haul after two Tests since Shane Warne
Matt Prior's fifty was his first in 17 innings
Further showers were forecast but England took the weather out of the equation with a succession of questionable shots that began in the very first over.
Stuart Broad hooked the second ball he faced from Peter Siddle for six but then tried the same off the next ball to be caught at deep square leg.
Graeme Swann followed with a tame edge to second slip off Ryan Harris as any delusional thoughts of a heroic rearguard action rapidly went up in smoke.
Matt Prior threw caution to the wind with some heavy hitting to bring up his first Test 50 in 17 innings after just four runs in his last three.
But when he top-edged a pull of his own from Siddle to Harris at long leg to fall for 69, even that brittle straw was snatched away.
And when Monty Panesar pushed Harris to Chris Rogers at short cover having failed to trouble the scorers, Australia were celebrating their second decisive win in two weeks.
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