Ediacaran https://refractor.io/tag/ediacaran/ Ediacaran en-AU Mon, 13 Jul 2026 22:28:00 GMT Earliest animal known to have a head was also right-handed https://refractor.io/biology/earliest-head-right-handed/ Fossil of Spriggina floundersi

Around 90% of all humans prefer to use their right hand. For cockatoos, it’s mostly the left.

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]]> Mon, 13 Jul 2026 22:28:00 GMT https://refractor.io/biology/earliest-head-right-handed/ Mike McRae