Crab-Acorn Lore

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.researchgate.net/profile/Tohru_Naruse/publication/316920754_Acorn-foraging_activity_and_feeding_behaviour_by_two_species_of_freshwater_crabs_Brachyura_Potamidae_from_Okinawa_Island_Ryukyu_Islands_Japan/links/5970a828a6fdccf0825406f2/Acorn-foraging-activity-and-feeding-behaviour-by-two-species-of-freshwater-crabs-Brachyura-Potamidae-from-Okinawa-Island-Ryukyu-Islands-Japan.pdf&ved=2ahUKEwiWwLnggq3yAhXSct8KHeQNAF8QFnoECA8QAQ&usg=AOvVaw0IDfwAWAabXmsav54-pJKg&cshid=1628824296034