Editing Handedness (section)

== Evolution ==
Handedness has been found in dozens of non-human vertebrates.<ref name=":5">{{Cite journal |last=Ströckens |first=Felix |first2=Schwalvenberg ,Maike |first3=El Basbasse ,Yasmin |first4=Amunts ,Katrin |first5=Güntürkün ,Onur |last6=and Ocklenburg |first6=Sebastian |title=Limb preferences in non-human vertebrates: A new decade |url=https://www.tandfonline.com/doi/full/10.1080/1357650X.2025.2499049 |journal=Laterality |volume=0 |issue=0 |pages=1–46 |doi=10.1080/1357650X.2025.2499049 |issn=1357-650X |pmid=40393935}}</ref> While data for [[fish]] is contentious, handedness has been found in [[Amphibian|amphibians]], [[Reptile|reptiles]], [[Bird|birds]], and various [[Mammal|mammals]].<ref name=":5" /> Some non-human primates have a preferred hand for tasks, but they do not display a strong right-biased preference like modern humans, with individuals equally split between right-handed and left-handed preferences. When exactly a right handed preference developed in the human lineage is unknown, although it is known through various means that [[Neanderthal|Neanderthals]] had a right-handedness bias like modern humans. Attempts to determine handedness of early humans by analysing the morphology of lithic artefacts have been found to be unreliable.<ref>{{Cite journal |last1=Ruck |first1=Lana |last2=Broadfield |first2=Douglas C. |last3=Brown |first3=Clifford T. |date=2015-05-07 |title=Determining Hominid Handedness in Lithic Debitage: A Review of Current Methodologies |url=http://dx.doi.org/10.1179/2051618515y.0000000009 |journal=Lithic Technology |volume=40 |issue=3 |pages=171–188 |doi=10.1179/2051618515y.0000000009 |issn=0197-7261|url-access=subscription }}</ref>