Evidence map›Paper›PMID 40401550›Full record

ReviewAnatomical record (Hoboken, N.J. : 2007)2025

Sharpening our understanding of saber-tooth biomechanics.

Tahlia Pollock, Philip S L Anderson

Abstract readReview
In one paragraph

Review in Anatomical record (Hoboken, N.J. : 2007), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Sharpening our understanding of saber-tooth biomechanics.Anatomical record (Hoboken, N.J. : 2007) · 2025
    Review
  3. Commentary: What's so interesting about sabertooths?Anatomical record (Hoboken, N.J. : 2007) · 2025
    Article
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

2 authors.

Tahlia PollockPalaeobiology Research Group, The University of Bristol, Bristol, UK.ORCID 0000-0001-5605-9069
Philip S L AndersonDepartment of Evolution, Ecology, and Behaviour, School of Integrative Biology, University of Illinois Urbana-Champaign, Urbana, Illinois, USA.ORCID 0000-0001-7133-8322

Funding

John Templeton Foundation JTF 62574National Science Foundation NSF IOS19-42906
6 · The paper itself

Abstract

Saber-teeth are a striking example of convergent evolution in vertebrate predators, having evolved multiple times in mammals and their early ancestors. While there is broad consensus that saber-toothed taxa employed a distinct biting strategy compared to conical-toothed carnivores, like the lion, the precise mechanics and variability of this bite remain debated. In this review, we integrate current knowledge of pointed tooth mechanics and puncture mechanics to explore predatory function, focusing on the canine shear-bite hypothesis. We quantify the key morphological characteristics of saber-teeth-elongation, slenderness, curvature, sharpness, and cross-sectional shape in a sample of saber-and conical-toothed taxa. Using the morphological diversity observed and insights from experimental studies, we examine the capacity of saber-teeth to perform the canine shear-bite, contrasting them with the clamp-and-hold bite of extant carnivores with conical canines. Our findings indicate that the morphological characteristics associated with extreme saber-tooth forms, as seen in Smilodon, suggest the prioritization of deeper puncture and slicing actions and limiting of lateral loads, favorable for a canine shear-bite. However, we also demonstrate that these morphological characteristics exist on a continuum accross saber-toothed taxa suggesting greater functional diversity beyond the shear-bite versus clamp-and-hold bite dichotomy. While this study refines our understanding of saber-tooth function, key gaps remain, particularly regarding the role of cross-sectional shape, curvature, and serrations in puncture mechanics.

Indexed as

ToothAnimalsBiological EvolutionBiomechanical Phenomenabiomechanicsfunctional morphologypuncture mechanicstooth mechanicstooth morphology

Identifiers

PMID40401550
PMCPMC12506857

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.