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Citizen Photos Double the Fatherhood Record

iNaturalist observations added 62 harvestman species with parental care and clarified separate evolutionary routes for mothers and fathers.

Published Updated Story ID: mp-2026-07-13-016
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Summary

iNaturalist observations added 62 harvestman species with parental care and clarified separate evolutionary routes for mothers and fathers.

Researchers combined nearly 30 years of fieldwork with iNaturalist photographs, more than doubling documented harvestman species that guard eggs. Their reconstruction found paternal care evolved both from no care and from maternal care, while maternal care arose from no-care ancestors. Sampling favors conspicuous egg guarding, and expert taxonomy remained essential.

Why it matters

iNaturalist observations added 62 harvestman species with parental care and clarified separate evolutionary routes for mothers and fathers.

Limits and context

No additional limitation was separately recorded.

Key claims

  1. iNaturalist observations added 62 harvestman species with parental care and clarified separate evolutionary routes for mothers and fathers.

    Evidence: source-2026-07-13-016

Sources

  1. ScienceDaily from The Linnean Society of LondonScienceDaily · secondary reporting

Corrections

No corrections have been recorded for this story.