Core Viewpoint - The research reveals the mechanism of how certain sea slugs, specifically Sacoglossan, integrate chloroplasts from algae into their cells, allowing them to perform photosynthesis, a process previously thought to be exclusive to plants [5][11]. Group 1 - The study published in the journal Cell discusses the integration of stolen chloroplasts in sea slugs for animal photosynthesis [5]. - Sacoglossan sea slugs can selectively retain chloroplasts from ingested algae, maintaining their photosynthetic capabilities for up to a year [7]. - The newly discovered organelle, named "kleptosome," encapsulates the chloroplasts, providing an environment conducive to photosynthesis [8]. Group 2 - The kleptosome utilizes ATP-sensitive ion channels to create an internal environment that supports chloroplast longevity and function [10]. - When the sea slugs are deprived of food, they change color from green to orange, indicating the digestion of stored chloroplasts for nutrients [10]. - The findings highlight the evolutionary adaptability of animal cells under pressure, showcasing convergent evolution in other photosynthetic animals like corals and sea anemones [11]. Group 3 - The research emphasizes the long-term acquisition and evolutionary integration of symbiotic organelles into complex cellular structures [13]. - The initial interest in the study stemmed from a misconception about sea slugs consuming corals, leading to the discovery of their unique photosynthetic abilities [13].