Australia chase 164 with 13.4 overs and eight wickets remaining
Lanning 57*, Perry 31*
Australia were 74-2 as openers Healy (42) & Haynes (31) fall in space of seven balls
England 8-56 from 107-2 to be dismissed for 163 in 49.3 overs
Beaumont hits 50 from 101 balls & Sciver 95-ball 46 in tentative third-wicket stand before collapse
Dean (18 not out) only other player to make double figures
Knight (9) bowled McGrath, debutant Lamb bowled Perry for second-ball duck. England were 19-2
England won toss and elected to bat. Brunt (side) & Cross (wrist) miss out
Australia, who lead series 10-4, have won the Ashes
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All over!
The Ashes ends in an emphatic eight-wicket victory for Australia.
They have chased 164 with a massive 13.4 overs to spare.
Meg Lanning ended 57 not out and won the game with a towering six.
Australia take the series 12-4. England end winless, the first time that has happened in a multi-format Ashes.
Image source, Getty Images
Image source, Getty ImagesEngland have taken two quick wickets but Australia remain on course for victory.
After England's struggled to score earlier, Alyssa Healy gave Australia a quick start with 42 from 56 balls.
Healy was caught off a leading edge in the 16th over - and her opening partner Rachael Haynes hit Sophie Ecclestone to mid-off six balls later - but Australia are already 74-2.
Chasing 164, they only need another 90 runs and have more than 30 overs to get them.
Image source, Getty ImagesFor the third successive match England have failed to bat out their overs.
The tourists have been bowled out for 163 in 49.3 overs with Australia dominating once more.
Tammy Beaumont and Nat Sciver offered some sort of resistance with a stand of 88 but it was curiously slow, coming from 152 balls.
Then when Beaumont was caught at mid-off for 50 from 101 balls, another sorry collapse began and the final eight wickets fell for 56 runs.
Never in the multi-format Ashes series has a team failed to win one match.
England's bowlers now must produce something special to stop that happening.
England already look to be heading towards another defeat in this Ashes series.
After Nat Sciver and Tammy Beaumont's cautious stand of 88, England have lost four wickets in quick succession.
Beaumont was caught at mid-off for 50 from 101 balls, Sciver lbw to Megan Schutt for 95-ball 46, Danni Wyatt caught at deep extra cover and Sophie Ecclestone bowled by an Annabel Sutherland yorker.
Having taken a tentative approach, England are now at risk of being caught well short.
They are 132-6 with eight overs to go.
Image source, Getty Images
Image source, Getty ImagesIt is slow going for England.
Tammy Beaumont and Nat Sciver have built a partnership since the tourists lost Heather Knight, the score 19-2, but it has not been quick going.
After 30 overs England are 80-2.
There have only been four boundaries so far although Sciver has just overturned an lbw decision on review.
She has 34 from 70 balls. Beaumont is on 29 not out after 34 balls.
Image source, Getty ImagesThese are familiar feelings for England fans.
Heather Knight's side are struggling again in the third one-day international against Australia, the final match of this Ashes series.
Opener Emma Lamb, brought in for her ODI debut in place of Lauren Winfield-Hill, was bowled by Ellyse Perry for a second-ball duck.
Captain Knight lasted 24 balls and scored nine runs before she was bowled by a yorker from Tahlia McGrath.
Australia have dominated while England have been timid.
Three of the first four overs were maidens and England managed only 20 runs from the first 10 overs.
Image source, Getty ImagesHello for the final time in Australia this winter. Is today the day England finally get a win?
Heather Knight's side meet Australia in the final one-day international of the Ashes series.
The hosts lead the series 10-4 meaning the Ashes are already secure but there is important World Cup preparation to be gained.
England have made three changes, resting Katherine Brunt and Kate Cross who have minor niggles and dropping Lauren Winfield-Hill. Opener Emma Lamb makes her ODI debut while Tash Farrant and Freya Davies also come in.
You can listen to commentary at the top of this page.
Australia: Rachael Haynes, Alyssa Healy (wk), Meg Lanning (c), Ellyse Perry, Tahlia McGrath, Ashleigh Gardner, Annabel Sutherland, Nicola Carey, Jess Jonassen, Alana King, Megan Schutt.
England: Tammy Beaumont, Emma Lamb, Heather Knight (c), Nat Sciver, Amy Jones (wk), Danni Wyatt, Charlie Dean, Sophie Ecclestone, Anya Shrubsole, Tash Farrant, Freya Davies.