Chunk marks on bones trace that Romans actually did battle lions


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Detailed view of lesions on a piece of bone of a male skeleton displayed beside a scale ruler.

Chunk marks on the skeleton’s pelvis (high left) may counsel {that a} lion dragged the combatant away by his hip after being incapacitated, researchers counsel.

Chunk marks discovered on a skeleton might be the primary bodily proof that people fought lions within the Roman empire. The younger man’s skeleton — excavated from a UK cemetery the place gladiators may need been buried — had puncture marks on the pelvis. Working with London Zoo, researchers in contrast the impressions with chunk marks on horse bones made by huge cats akin to cheetahs, lions and tigers and located a match with lion bites. The invention “[reshapes] our notion of Roman leisure tradition within the area”, says anthropologist and examine co-author Tim Thompson.

BBC | 5 min learn

Reference: PLOS One paper

Science sleuths have recognized lots of of instances wherein synthetic intelligence (AI) instruments appear to have been used within the preparation of scientific papers with out disclosure. In a preprint evaluation of 500 such papers, 13% of them appeared in journals belonging to massive publishers, akin to Elsevier, Springer Nature and MDPI. In some instances, the papers have been silently corrected — the hallmark AI phrases eliminated with out acknowledgement. This kind of quiet change is a possible menace to scientific integrity, say some researchers.

Nature | 7 min learn

Reference: arXiv preprint (not peer reviewed)

Nature’s information workforce, together with this text, is editorially unbiased of its writer, Springer Nature.

Trump’s impression on US science

Recent turmoil has hit the US Nationwide Science Basis (NSF): lots of extra of the company’s analysis grants have been terminated on Friday on high of the lots of already cancelled the earlier week. The blows got here at some point after the company’s director, Sethuraman Panchanathan, abruptly resigned and NSF employees members have been provided incentives to retire early. In a farewell letter to employees, Panchanathan wrote, “I consider that I’ve achieved all I can to advance the mission of the company”.

Nature | 6 min learn

US science-funding businesses have to date frozen or cancelled not less than US$6 billion in analysis grants and contracts throughout quite a lot of high universities. These cuts are a part of the Trump administration’s battle to reshape admissions, educating and extra at these establishments, which they’ve alleged are indoctrinating college students with left-wing ideologies. The Trump workforce cites failing to cease “antisemitic violence and harassment” on campuses as the explanation for halting funding to Columbia and Harvard. In another instances, no justification has been said publicly. For the reason that funding cuts started, greater than 500 college presidents have since signed a letter opposing “unprecedented authorities overreach”.

Nature | 7 min learn

SCIENCE STALLED. Chart shows funding cuts made to US universities by the administration of President Donald Trump.

Supply: Knowledge from Trump administration bulletins, media reviews and NIH RePORT

A number of European analysis institutes are becoming a member of a worldwide grass-roots effort to avoid wasting science information units that might be deleted or decommissioned amid the Trump administration’s assault on analysis. Pangaea — a large environmental information repository run by two institutes in Germany — is formally working with the US Nationwide Oceanic and Atmospheric Administration (NOAA) to again up at-risk databases. NOAA displays Earth’s ambiance and local weather and gives weather-forecasting providers. Pangaea began to gather the freely-available information after listening to ‘misery calls’ from the scientific neighborhood and NOAA staffers.

Nature | 5 min learn

Notable quotable

“Establishments want to acknowledge that racism, like different types of bias in greater schooling, is a provable scientific truth, and should act accordingly.”

Social psychologist Keon West argues that whereas the Trump administration’s orders to dismantle range, equality and inclusion (DEI) initiatives are misguided, these initiatives might be improved. He requires a extra scientific method to those programmes, underpinned by clear targets and measurable metrics. (Nature | 5 min learn)

Options & opinion

When attempting to diagnose a uncommon illness, clinicians typically sequence a pre-determined set of genes to attempt to discover a disease-causing variant. This will stretch to an individual’s complete exome — all of their protein-coding genes. However the exome solely makes up 1.5% of our genome. Entire-genome sequencing (WGS) can fill in the remaining, capturing variants that may affect how genes are expressed. As WGS turns into cheaper and researchers develop instruments that assist analyse the information, many geneticists are calling for it to be provided a lot earlier within the diagnostic course of for uncommon ailments.

Nature | 12 min learn

This editorially unbiased article is a part of Nature Outlook: Medical diagnostics, a complement produced with monetary help from Seegene.

The place I work

Jemma Wadham with walking sticks and a black bucket on her back, standing in front of a glacier in the Norwegian mountains.

Jemma Wadham is a geoscientist at UiT The Arctic College of Norway in Tromsø, Norway.Credit score: Jacopo Pasotti for Nature

Geoscientist Jemma Wadham research the ever-changing glaciers of the Arctic, analysing their soften water for helpful or poisonous chemical substances and exploring the methane-producing microorganisms beneath them. “I see myself as a glacier-forensics professional, uncovering what has occurred beneath the glacier, like investigating against the law,” she says. “Finally, we hope that our analysis in Norway will contribute to scientists’ understanding of how glaciers have an effect on carbon biking and marine life in different world settings, such because the Canadian Arctic and Patagonia in South America.” (Nature | 3 min learn)

QUOTE OF THE DAY

Entomologist Anderson Lepeco hit the jackpot when he discovered an uncommon specimen in a fossil assortment on the College of São Paulo: a 113 million-year-old ant fossil — the oldest ant ever discovered. (Science | 4 min learn)

On Friday, Leif Penguinson was celebrating World Penguin Day with a visit to the Chola Go in Nepal. Did you discover the penguin? Once you’re prepared, right here’s the reply.

This article is all the time evolving — inform us what you suppose! Please ship your suggestions to briefing@nature.com.

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