Living beings on Malpelo Island, Colombia, are connected through food webs that link the land and sea. By analyzing isotopes in samples collected from 2017 to 2021, researchers found that detritus from the land plays a significant role in the food web, with high overlap and connection between terrestrial and marine environments. The presence of the Nazca booby seabird is crucial for transferring nutrients between these ecosystems, highlighting the importance of preserving this species for the island's balance. The study shows how isotopic tracers can reveal trophic relationships in small island environments with large seabird populations.