1. Researchers at the University of Cambridge have discovered a novel way to utilize algae by repurposing them as "micro-horses" to pull miniature chariots. The researchers used a technique called optogenetics, which involves genetically modifying the algae to respond to light, allowing them to control the movement of the algae-powered chariots.

2. The micro-chariots, which are about the size of a human hair, are designed to carry small payloads and could potentially be used in various applications, such as targeted drug delivery or environmental monitoring. The researchers believe that this technology could pave the way for the development of new micro-robotics and micro-transportation systems.

3. The study, published in the journal Science Robotics, highlights the potential of using natural organisms, such as algae, to create novel engineering solutions. The researchers are excited about the possibilities this technology presents and are exploring ways to further refine and expand its capabilities, potentially leading to new breakthroughs in the field of micro-robotics.