Evidence map›Paper›PMID 41499491›Full record

ArticleScience advances2026

Direct evidence for poison use on microlithic arrowheads in Southern Africa at 60,000 years ago.

Sven Isaksson, Anders Högberg, Marlize Lombard

Abstract read
In one paragraph

Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Sven IsakssonArchaeological Research Laboratory, Stockholm University, Sweden.ORCID 0000-0002-7076-6381
Anders HögbergDepartment of Cultural Sciences, Linnaeus University, Sweden.ORCID 0000-0002-8747-4131
Marlize LombardPalaeo-Research Institute, University of Johannesburg, South Africa.ORCID 0000-0002-0675-0414

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Poisoned weapons are a hallmark of advanced hunter-gatherer technology. Through targeted microchemical and biomolecular analyses, we identified traces of toxic plant alkaloids on backed microliths from Umhlatuzana Rock Shelter in KwaZulu-Natal, South Africa, excavated from a level dated to 60,000 years ago. The alkaloids buphandrine and epibuphanisine only originate from Amaryllidaceae indigenous to southern Africa. The most likely source is

Indexed as

AlkaloidsFossilsPoisonsWeaponsAfrica, SouthernHumansSouth AfricaAlkaloidsPoisons

Identifiers

PMID41499491
PMCPMC12778036

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.