Pycnogonum litorale, the anemone sea spider, is a small marine pycnogonid (sister group to all other chelicerates) with a vestigial opisthosoma (abdomen) and a proboscis. Its genome reveals information about the evolution of the body plan and genomic structure of chelicerates. https://doi.org/10.1186/s12915-025-02276-x — July/02/2025 Authors: Alba Burgos Renedo, Pablo Caldera Morante, Marc Hormigo Zambrano, Jose…