Collective Behavior 480 Million Years Ago
Though our understanding of the anatomy of the earliest animals is growing ever more precise, we know next to nothing about their behavior. Did group behavior arise recently or is it primeval? To answer this question, researchers from the CNRS, the University of Poitiers, UBO, Claude Bernard Lyon 1 University1, Cadi Ayyad University (Marrakech, Morocco), and the University of Lausanne (Switzerland) studied fossilized Moroccan Ampyx trilobites, which lived 480 million years ago.
This example would seem to suggest that group behaviour is of ancient origin and, from an early date, likely conferred an evolutionary advantage on the first animals, allowing them to survive environmental stress and improve their reproductive chances. These findings are published in Scientific Reports (17 October 2019).
Contacts and sources:
CNRS
Citation: Collective behaviour in 480-million-year-old trilobite arthropods from Morocco. Jean Vannier, Muriel Vidal, Robin Marchant, Khadija El Hariri, Khaoula Kouraiss, Bernard Pittet, Abderrazak El Albani, Arnaud Mazurier & Emmanuel Martin. Scientific Reports, 2019 DOI: 10.1038/s41598-019-51012-3
Source: http://www.ineffableisland.com/2019/10/though-our-understanding-of-anatomy-of.html
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