A new crab is settling in the Mediterranean: Early evidence of establishment of a Lessepsian species in the Ionian Sea
Peer-Reviewed Publication
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Updates every hour. Last Updated: 2-Apr-2026 04:16 ET (2-Apr-2026 08:16 GMT/UTC)
A new study published in Acta Ichthyologica et Piscatoria documents the rapid expansion of the non-indigenous Indo-Pacific crab Gonioinfradens giardi in the central Mediterranean. Working closely with local fishers, researchers collected a dozen crabs along the Ionian coast of Sicily within just two months. This marks the species' westernmost occurrence to date, indicating the rapid establishment of this species in the Mediterranean Sea and highlighting its potential invasiveness.
Two researchers at the University of Zurich have discovered and described a new, previously unknown palm species found in the virgin forests of Colombia. In close cooperation with an indigenous community there, they mapped the geographical distribution of the palm species and subjected their study to a local peer review process.
A new interdisciplinary study published in Nature reconstructs over 2,000 years of population history in Argentina’s Uspallata Valley (UV), a southern frontier of Andean farming spread in ancient times, with broader lessons on how agriculture shaped societies and how communities endured crises. By combining ancient human and pathogen genomics with isotopic analyses, archaeology and paleoclimate records–and working in close collaboration with Huarpe Indigenous communities–, the research reveals how local hunter-gatherers adopted agriculture, how more recent intensive maize farmers experienced prolonged stress, and how kinship-based mobility may have helped communities persist through instability.