# These Animals Were Righties Long Before Hands Even Evolved

> **Open Intelligence Dossier** · First detected: 2026-07-10 00:07 UTC · Category: Science

## Executive Summary
New fossil analysis identifies behavioral handedness in the 550-million-year-old organism Spriggina floundersi, marking the earliest evidence of the trait.

## Intelligence Brief
Researchers have identified evidence of right-handedness in the Ediacaran bilaterian Spriggina floundersi. This creature, which lived approximately 550 million years ago, represents the earliest known instance of an animal demonstrating a directional preference before the evolution of limbs.


Coverage from outlets including Nature, The New York Times, CNN, Phys.org, and New Scientist emphasizes that this finding pushes the known timeline for behavioral handedness back to the earliest stages of complex animal life. The analysis specifically focuses on the worm-like, motile organism's tendency to turn toward the right.


Scientific discussion remains focused on the implications of this trait in the animal kingdom. Ongoing inquiry seeks to understand how this early behavioral preference relates to the broader development of symmetry and body plans in ancient organisms.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| CNN | Earliest animal with a head was also the oldest known ‘righty’ | [Source Link](https://news.google.com/rss/articles/CBMilwFBVV95cUxNeWRkZHc2SXhtMEwwaEZKc3hjQlRrQjRXR0RZU25SWkZmX3NXc2ZFMnQ2WUhpWHNZM3NTQk5iVmZCSHBkLVFDQjVFV3Q5eVlfSFJuNDVaVHZaSDRDSGxVajdjVGxaaW5sZWx5UFpIZ2RUcXY3OG54OEJjQng5LWhlZEhNbzY2ZUtGX1ZIU3ZFODZBVHUtR2dV?oc=5) |
| Phys.org | Ancient fossil may reveal animal kingdom's earliest right-handedness at 550 million years old | [Source Link](https://news.google.com/rss/articles/CBMie0FVX3lxTE5BMlhacGNvcFBQQzBXU2MtbldxaF9xdnRBTHhUejZrbWJqenMySV9IQWlET0dKMWI3N0tUc1Z2S3FWTVU4UjMxMTY1cXNGcUh5QVpDcVo2NmpmeWd5bDlaQ180RWNMOHJYdEt6M1d5WnNmLXZzUnQ5QVpFdw?oc=5) |
| New Scientist | A worm that lived half a billion years ago preferred turning right | [Source Link](https://news.google.com/rss/articles/CBMisgFBVV95cUxOeGZTTFJjcHFKUnU2Z0xJNzQweXMyNGpPRWgwTlV4RmFRZ2YycGg3S0xHeEJlZjVQZ3htUVJ4Z1oxenlfT01DTVVjQmdyMUhuX3EtVHFuZU8xbjcxU3p3TVBxaFBMOUtUTU9ZOHMyVzh0Z3ZxVkNmNWxXcVd2ZGl1T05aQTZBNWtuTDBBbkFHOVgtUE1JTnAya3AxVEdjdzBGRHJSX2NGMlF0SnhQaGVpTm1n?oc=5) |
| Nature | Earliest evidence of behavioural handedness in the Ediacaran motile bilaterian Spriggina floundersi | [Source Link](https://news.google.com/rss/articles/CBMiX0FVX3lxTE41ZlZqUTc0N08ydjVDUHp5Vm5NTHR6OUlFR0s2M3lPbTJYTlVnTUFoVmU3Ri11d1gyT09zZDlZSXItam9Rd3VDdHJHdHNCZm56OXFLZ2d0eld4bVNMV3I0?oc=5) |
| CNN | Earliest animal with a head was also the oldest known ‘righty’ | [Source Link](https://news.google.com/rss/articles/CBMixgFBVV95cUxNTDY5N2R2OWI0QUk3UU1nSmR5YUg5VWt6V0w4Q2ZYN2pMQTk5N084SXpNUWFHaUFkTlJIdDRIcHRNRkRlZVpHT1NwX0tIN0czbGlQcUxHNXRWWDdwU0hzb3NTTEtJa2tJVzBuSVE1aTY3ZTZDQnY3UkQ2Yzkzend6T3FGQy11blNMLUZpb0ZMRUMwRnBJRDNtQ180V2NXMU0tYWtCRW5TNE9QN2ZVdnByUDU1T1g3Mk0waHhXWE1WaHFNUDIzdnc?oc=5) |
| The New York Times | These Animals Were Righties Long Before Hands Even Evolved | [Source Link](https://news.google.com/rss/articles/CBMijAFBVV95cUxPUFltT3NkaW5DY0tGX282SFB5a2FHMWREVUU3eU9xUUJ4ZC1sakJRSGVSOW12d3RvSTY3Vm1GVGNrWVEyZXk0NFZETS15ZkxYbUNfaVZkVmVxZEhKVDhWSTVSWkdkb1NpZEVBTVY1WXJPNy04LVJiMnU2MjN3ZUIxMVFTM1g5bklfOHI5bQ?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-07-10/these-animals-were-righties-long-before-hands-even-evolved*