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An artist’s interpretation of what Tyrannosaurus rex may have looked like. (Image credit: Shutterstock)

The total number of Tyrannosaurus rex to ever roam Earth has been recalculated by scientists, with new research revealing 1.7 billion of these dinosaur kings existed throughout our planet’s history.

In April 2021, a study published in the journal Science (opens in new tab) estimated that up to 2.5 billion T. rex individuals lived between 68 and 65.5 million years ago, whenroamed Earth. But a new study, published April 18 this year in the journal Palaeontology (opens in new tab) , has challenged that number, suggesting the actual figure is probably closer to 1.7 billion. 

Study author Eva Griebeler (opens in new tab) , an evolutionary ecologist at the Johannes Gutenberg University of Mainz in Germany, told Live Science that her new model factored in information about T. rex that the original study’s authors overlooked, which resulted in the reduced number. 

The result is a more well-rounded study that improves upon the original team’s work, Charles Marshall (opens in new tab) , a paleontologist at the University of California, Berkeley and lead author of the 2021 study, told Live Science.

Related: ‘Frightful’ never-before-seen tyrannosaur might be the ‘missing link’ in T. rex evolution

A cast of a T. rex skeleton that was found in the badlands of eastern Montana in 1990. (Image credit: Keegan Houser/University of California, Berkeley)

In the original study, Marshall’s team created a complex model that factored in a number of different variables — such as average body mass, population density, approximate geographic range, age of sexual maturity, number of eggs laid, average lifespan, survival rates and generation time — to estimate how many T. rex could have survived alongside one another. The model revealed that each T. rex generation likely consisted of around 20,000 individuals and that there were around 125,000 generations in the 2.5 million years they existed — meaning 2.5 billion T. rexes in total.

But Griebeler disagreed with some of the data imputed into this model. She believed Marshall’s team overestimated the survival rates and egg-laying capabilities of T. rex, as well as the number of generations that existed during this time, which skewed the results. 

Research by Griebeler published shortly after the original study (opens in new tab) found these values were likely more similar to those seen in modern birds and reptiles. When these values were imputed into an updated model, it revealed that there were 19,000 individuals in each T. rex generation and that there were only around 90,000 generations, meaning the maximum number of T. rex to exist was 1.7 billion. 

Researchers had overestimated the survival rates of T. rex. (Image credit: Roger Harris/SPL)

The original study was the first to estimate how many T. rex lived on Earth and “was driven in part by pure curiosity,” Marshall said. It was like wondering “how many stars there are in the sky,” he added. As a result, the team was happy to have come up with a decent estimate at all. But the researchers are glad that it has now been updated to a “more realistic” estimate, Marshall said.

Regardless of the exact number, both studies raise an interesting question — where are all the T. rex bones? If Griebeler’s predictions are correct, it means that we have only found the remains of 0.0000002% of these giant dinosaurs. This is an important question that requires further research, Griebeler and Marshall said.RELATED STORIES—Massive bulldog-faced dinosaur was like a T. rex on steroids

—Why did T. rex have such tiny arms?

—$25 million auction of T. rex skeleton called off at the last minute over replica bone controversy 

Our understanding of T. rex is constantly changing. In recent years, numerous discoveries about the species have altered what we know about the long-dead dino kings.

In November 2022, one research group predicted that the largest T. rex to ever walk Earth would have been 70% larger than the largest known T. rex fossil “Scotty.” And in April 2021, another group revealed that the species’ maximum speed would have likely been around 3 mph (5km/h), which is around the same speed as a walking human. And other discoveries have suggested that the giant dinosaurs were also warmboolded like modern birds and hid their teeth behind a thin pair of lips.

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Sports

Fantasy hockey stock watch: Who’s up, who’s down and why?

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Fantasy hockey stock watch: Who's up, who's down and why?

There are a lot of ingredients that go into the meat grinder when we are crafting up fantasy rankings.

Without getting into how the sausage is made too much, there’s a blend of weighted fantasy points per game averages, which are then modified by a model generated by historical comparables for each individual skater. For goaltenders, it’s even more complex with current and past team dynamics, combined with a manual crease share estimation also thrown into the mix.

But they’re never quite perfect. Some sausages don’t have the right spice blend, the proper fat ratio, or the right bind.

It’s even trickier when the meat is out of season; the offseason grind often produces sausages that are a little … undercooked.

The ESPN fantasy hockey rankings got an in-season update for the first time on Friday. The previous rankings were for preseason drafts.

Since then, some of the sausages have turned out surprisingly well, while others are still a bit raw. Certain players who were ranked far too low have been flipped, now seasoned and ready for the table, while others who were overhyped have fallen apart.

Jump ahead: Goalies | Power Play

Undercooked

Linus Ullmark, G, Ottawa Senators (previously ranked 266; 54 last week): This applies to Ullmark and several other goaltenders. They are the toughest to project. Even now, Ullmark only has 0.6 fantasy points on the season. But what we are looking for above all else are positive team outcomes and workload. Ullmark has both of those going for him, so his season-long projection has come a long way since last spring.

Chris Kreider, LW, Anaheim Ducks (previously ranked 287; 114 last week): Five games into the season, in-season outcomes have already changed his fortunes. The energy the Ducks have shown — with Kreider in the heart of the attack, when he’s not ill — has been significant enough to suggest Kreider’s goal-scoring ways are making a return.

Shane Pinto, C, Ottawa Senators (previously ranked 248; 102 last week): Good things can happen when you shoot. Pinto fired 1.8 shots per game last season. He’s averaging 4.0 per game this season. No wonder he’s already taken down more than a third of his career-high goal total in just 10 games.

Dylan Larkin, C, Detroit Red Wings (previously ranked 154; 18 last week): It certainly looks like Larkin finally has the talent around him to be the dominant fantasy force that’s been just under the surface for years. Only 10 other skaters have started with better per-game fantasy totals.

Jaden Schwartz, LW, Seattle Kraken (previously ranked 200; 126 last week): To be fair, it still feels tricky to pick which members of the Kraken will truly be the ones rising to the top by season’s end. But Schwartz certainly has the early reins as offensive leader, with four goals and eight points across nine games.

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Jaden Schwartz taps in the opener for the Kraken

Jaden Schwartz taps in the opener for the Kraken

Overcooked

Andrei Svechnikov, LW, Carolina Hurricanes (previously ranked 139; 438 last week): Just 0.3 fantasy points per game? Svechnikov can recover from this atrocious start, but he has some hills to climb to do so. And it will be too late for fantasy managers.

Steven Stamkos, C, Nashville Predators (previously ranked 101; 341 last week): It seems last season wasn’t an aberration, but simply the new normal. Stamkos is not a fantasy force on the Predators.

Matt Duchene, C, Dallas Stars (previously ranked 105; 303 last week): Having Duchene as depth is going to payoff for the Stars, but fantasy managers can’t afford to wait for his number to be called up the depth chart.

Drew Doughty, D, Los Angeles Kings (previously ranked 99; 235 last week): Without the power play, Doughty’s stat line is getting a bit thin for fantasy. As long as the Kings keep their five-forward advantage, Doughty is out of the mix.

Goalie notes

Here’s this week’s selection of goaltending snapshots, showing crease shares, fantasy production, and key notes where relevant.

Buffalo Sabres in nine games (four last week):

  • Alex Lyon (crease share season/week: 77.3%/49.3%, fantasy points season/week: 21.8/3.6, 81.8% available)

  • Ukko-Pekka Luukkonen (crease share season/week: 11.5%/25.7%, fantasy points season/week: -3.4/-3.4, 88.7% available)

  • Colten Ellis (crease share season/week: 11.2%/25.0%, fantasy points season/week: 5.4/5.4, 99.9% available)

Luukkonen might not have started on the weekend if Ellis hadn’t been hurt, so this crease is getting quite intriguing. And with Lyon ranked eighth among goaltenders for fantasy points, it’s worth paying attention to how the rotation shapes out now.

Columbus Blue Jackets in eight games (three last week):

  • Elvis Merzlikins (crease share season/week: 50.7%/67.6%, fantasy points season/week: 13.6/7.6, 73.1% available)

  • Jet Greaves (crease share season/week: 49.3%/32.4%, fantasy points season/week: 2.4/-5.0, 93.1% available)

Chicago Blackhawks in nine games (two last week):

  • Spencer Knight (crease share season/week: 67.1%/50.8%, fantasy points season/week: 24.6/5.8, 50.5% available)

  • Arvid Soderblom (crease share season/week: 32.9%/49.2%, fantasy points season/week: 1.2/-0.2, 99.6% available)

Success in a losing cause isn’t an easy task, but volume looks like it will keep Knight as a fantasy play going forward. Only four other goaltenders have more fantasy points so far, despite Knight sitting on just three wins.

Colorado Avalanche in 10 games (five last week):

  • Scott Wedgewood (crease share season/week: 81.4%/53.8%, fantasy points season/week: 19.8/-10.6, 29.5% available)

  • Trent Miner (crease share season/week: 18.6%/46.2%, fantasy points season/week: 2.0/2.0, 99.4% available)

Three consecutive outings with negative fantasy points shows the risks inherent with backups like Wedgewood. When things are good, it’s great, but when they are not, they really are not. Mackenzie Blackwood is due back soon. He should be rostered in every league, but is available in about a quarter of them.

Edmonton Oilers in 10 games (four last week):

  • Stuart Skinner (crease share season/week: 60.2%/49.8%, fantasy points season/week: 10.0/1.8, 32.3% available)

  • Calvin Pickard (crease share season/week: 39.8%/50.2%, fantasy points season/week: -3.6/-4.0, 97.3% available)

Montreal Canadiens in 10 games (four last week):

  • Jakub Dobes (crease share season/week: 50.5%/75.2%, fantasy points season/week: 30.2/18.8, 51.4% available)

  • Sam Montembeault (crease share season/week: 49.5%/24.8%, fantasy points season/week: -9.8/-7.4, 37.0% available)

Sure, it’s been about 50-50 so far, but Dobes continues his hostile takeover and is a must-roster in all leagues.

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Jakub Dobes robs Flames with save

Jakub Dobes robs Flames with save

New Jersey Devils in nine games (four last week):

  • Jake Allen (crease share season/week: 63.2%/75.2%, fantasy points season/week: 24.2/12.0, 66.1% available)

  • Jacob Markstrom (crease share season/week: 25.7%/DNP, fantasy points season/week: -0.2/DNP, 45.7% available)

  • Nico Daws (crease share season/week: 11.1%/24.8%, fantasy points season/week: 7.8/7.8, 99.3% available)

Philadelphia Flyers in eight games (three last week):

  • Dan Vladar (crease share season/week: 61.3%/64.3%, fantasy points season/week: 18.6/6.4, 87.4% available)

  • Samuel Ersson (crease share season/week: 38.7%/35.7%, fantasy points season/week: -3.4/2.6, 97.7% available)

Toronto Maple Leafs in nine games (three last week):

  • Anthony Stolarz (crease share season/week: 77.4%/65.3%, fantasy points season/week: -1.6/-7.0, 17.2% available)

  • Cayden Primeau (crease share season/week: 22.6%/34.7%, fantasy points season/week: 3.8/2.6, 99.3% available)

Back at practice, Joseph Woll should be in game action sooner than later, relieving the pressure on Stolarz and hopefully getting both of them back to roster-worthy, as they managed to stay all last season.

Vancouver Canucks in 10 games (four last week):

  • Thatcher Demko (crease share season/week: 59.7%/50.5%, fantasy points season/week: 21.2/5.8, 16.4% available)

  • Kevin Lankinen (crease share season/week: 40.3%/49.5%, fantasy points season/week: -5.6/-9.8, 96.3% available)

Right now, it’s roughly a 60-40 split. The Lankinen contract gave us pause about a potential tandem during the offseason, but Demko is establishing clear separation. Good news for managers invested in Demko: volume is all he needs to climb from middling to near the top of fantasy goaltenders.

Power-play notes

Pavel Zacha, C, Boston Bruins (available in 74.5%)

Jason Zucker, LW, Buffalo Sabres (available in 88.0%)

If you need a specific boost in power-play points in a medium or deep fantasy league, surnames starting with Z might be the way to go. Zacha and Zucker don’t offer a lot at 5-on-5, but are both key cogs of their respective power-play units.

Zayne Parekh, D, Calgary Flames (available in 94.6%): Tuesday’s tilt is a big one for Parekh. The Flames have been rolling him into the quarterback role across the past few games and it’s a homecoming for him. But most importantly, it’s his ninth game, which is the last one the Flames get before he loses eligibility to go back to the OHL.

Valeri Nichushkin, RW, Colorado Avalanche (available in 56.1%): Elevated to the top unit over Brock Nelson, the results are starting to come in after a slow start for Nichushkin. If the second line ever gets going at even strength, he’ll become a must-have, but he fits fantasy rosters as a power-play specialist already.

David Tomasek, RW, Edmonton Oilers (available in 99.7%): It’s been nine games and the Oilers aren’t moving off Tomasek as the fifth forward on what could be one of the best power plays in the league. At some point, Connor McDavid will start scoring more, and some of that action will come on the power play. It’s worth considering Tomasek as a bench stash.

Ivan Demidov, RW, Montreal Canadiens (available in 49.7%): The Habs have switched to Demidov over Zach Bolduc on the top unit, which elevates Demidov’s potential significantly. We just need him to start shooting more.

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Ivan Demidov scores goal for Canadiens

Ivan Demidov nets goal for Canadiens

Brady Skjei, D, Nashville Predators (available in 44.4%): Someone has to fill in for an injured Roman Josi. That doesn’t mean you want Skjei on your fantasy team, but it’s at least worth noting. The unit did pick up a goal with Skjei at the helm already.

Trevor Zegras, C, Philadelphia Flyers (available in 45.8%): Zegras has been on the ice for all four of the Flyers power-play goals so far this season. He’s currently on what might be the second unit on paper, but is the first unit in practice, with three goals across the past three games.

Anthony Mantha, RW, Pittsburgh Penguins (available in 90.3%): The early answer to who replaces Rickard Rakell on the Pens top unit, Mantha has some potential with this added assignment. His 5-on-5 line with Evgeni Malkin and Justin Brazeau is on fire. Admittedly, they’ll cool off at some point, but they are hot now. Add in some looks with Sidney Crosby on the advantage, and we could have some fantasy value for the medium-term.

Shea Theodore, D, Vegas Golden Knights (available in 28.8%): So, either the Knights are in a serious funk on the advantage, or Mark Stone is absolutely critical to the attack. The top unit with Stone as part of a five-forward group had eight goals across 22:04 with 4.71 shot attempts per two minutes. With Theodore on the point and Stone injured, the group has no goals and 0.66 shot attempts per two minutes across 6:06.

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Politics

Budget 2025: Reeves vows to ‘defy’ gloomy forecasts – but faces income tax warning

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Budget 2025: Reeves vows to 'defy' gloomy forecasts - but faces income tax warning

Rachel Reeves has said she is determined to “defy” forecasts that suggest she will face a multibillion-pound black hole in next month’s budget, but has indicated there are some tough choices on the way.

Writing in The Guardian, the chancellor argued the “foundations of Britain’s economy remain strong” – and rejected claims the country is in a permanent state of decline.

Reports have suggested the Office for Budget Responsibility is expected to downgrade its productivity growth forecast by about 0.3 percentage points.

Rachel Reeves. PA file pic
Image:
Rachel Reeves. PA file pic

That means the Treasury will take in less tax than expected over the coming years – and this could leave a gap of up to £40bn in the country’s finances.

Ms Reeves wrote she would not “pre-empt” these forecasts, and her job “is not to relitigate the past or let past mistakes determine our future”.

“I am determined that we don’t simply accept the forecasts, but we defy them, as we already have this year. To do so means taking necessary choices today, including at the budget next month,” the chancellor added.

She also pointed to five interest rate cuts, three trade deals with major economies and wages outpacing inflation as evidence Labour has made progress since the election.

Speculation is growing that Ms Reeves may break a key manifesto pledge by raising income tax or national insurance during the budget on 26 November.

Read more from Sky News:
What tax rises could Reeves announce?
Start-ups warn chancellor over budget bombshell

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Chancellor faces tough budget choices

Budget decisions ‘don’t come for free’

Although her article didn’t address this, she admitted “our country and our economy continue to face challenges”.

Her opinion piece said: “The decisions I will take at the budget don’t come for free, and they are not easy – but they are the right, fair and necessary choices.”

Yesterday, Sky’s deputy political editor Sam Coates reported that Ms Reeves is unlikely to raise the basic rates of income tax or national insurance, to avoid breaking a promise to protect “working people” in the budget.

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Tax hikes possible, Reeves tells Sky News

Sky News has also obtained an internal definition of “working people” used by the Treasury, which relates to Britons who earn less than £45,000 a year.

This, in theory, means those on higher salaries could be the ones to face a squeeze in the budget – with the Treasury stating that it does not comment on tax measures.

In other developments, some top economists have warned Ms Reeves that increasing income tax or reducing public spending is her only option for balancing the books.

Experts from the Institute for Fiscal Studies have cautioned the chancellor against opting to hike alternative taxes instead, telling The Independent this would “cause unnecessary amounts of economic damage”.

Although such an approach would help the chancellor avoid breaking Labour’s manifesto pledge, it is feared a series of smaller changes would make the tax system “ever more complicated and less efficient”.

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Politics

Why there is a budget black hole – and how the chancellor might fill it

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Why there is a budget black hole - and how the chancellor might fill it

Here are my rolling assumptions for the shape of the budget on 26 November, which I will update as the date draws closer.

It sets out why there is a black hole – and what might fill it, with greater confidence about the former. Note the Treasury has not yet received the final forecasts.

Some of the suggestions and assumptions have been drawn up with the help of the Resolution Foundation, but the judgements are mine.

The size of the black hole

£10bn – Forecast downgrade, comprising of lower future productivity offset by upgrade to wage growth

£2bn-£4bn – Debt interest costs, depending on the window picked by the Office for Budget Responsibility

£10bn – Existing policy turns: winter fuel allowance, welfare/PIP U-turn, fuel duty freeze rollover

£5bn – More spending on lifting two-child benefit cap, help for energy bills and also for NHS England redundancy payments

£5-£10bn – Extra headroom

Total: £32-£39bn

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How could Rachel Reeves fill it?

£5bn – Reducing unallocated departmental spending in 2029/30

£8bn – Freezing personal allowance

£4bn – Close capital gains tax loopholes on people moving abroad and after death

£2bn – Higher rate council tax band

£2bn – Get Limited Liability Partnerships to pay national insurance

£1-£2bn – Higher gambling taxes

£1bn – Raise higher rate income tax

Total: £23bn

How to fill the rest?

One big measure or lots of little measures. The Resolution Foundation has explored putting up income tax and simultaneously reducing national insurance.

This means for most employees their tax bill doesn’t change. But the self employed are paying more and pensioners pay more, along with landlords who pay more because income tax is paid on rental income not national insurance. This raises £6bn.

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