Ants who receive a caffeine-laced sugary reward become more efficient at navigating back to the reward’s location compared to ants that only receive sugar. Researchers report on May 23 in the journal iScience that caffeinated ants move toward the reward via a more direct path but do not increase their speed, suggesting that caffeine improved their ability to learn. Ants who receive a caffeine-laced sugary reward become more efficient at navigating back to the reward’s location compared to ants that only receive sugar. Researchers report on May 23 in the journal iScience that caffeinated ants move toward the reward via a more direct path but do not increase their speed, suggesting that caffeine improved their ability to learn. Plants & Animals Ecology Phys.org – latest science and technology news stories