揭秘“太空小鼠”的“出差奇遇”

Core Viewpoint - The successful reproduction of "space mice" after their return from a 14-day stay in the Chinese space station demonstrates that short-term space travel does not significantly affect the reproductive capabilities of mammals, providing valuable samples for future research on the impact of space environments on mammalian life [1][14]. Group 1: Space Mice Experiment - Six offspring from a pair of "space mice" are thriving after being born following their parents' return from space [1]. - The experiment marks China's first complete process of mammalian space experiments, including preparation, in-orbit experiments, and sample recovery [14]. - The research aims to provide insights into the effects of space environments on human health and reproductive capabilities [14]. Group 2: Behavioral Observations - "Space mice" exhibited stronger maternal instincts compared to ground control mice, showing a heightened desire to protect their offspring [5][6]. - The adaptation of "space mice" to the microgravity environment involved initial anxiety, which decreased over time as they became more comfortable [5]. - The study includes a control group of ground mice to compare behaviors and reproductive outcomes [5]. Group 3: Emergency Response and Adaptation - The research team faced a "food shortage" crisis during the mission due to an extended stay in space, prompting an emergency response to ensure the mice's survival [7][10]. - Alternative food sources, including soy milk, were identified and successfully tested for their suitability for the mice [10]. - An AI behavior monitoring system was developed to track the mice's activities and health, aiding in decision-making during the mission [10]. Group 4: Future Research Directions - Ongoing studies will focus on the growth and physiological changes of the offspring, as well as their reproductive capabilities, to explore the potential multigenerational effects of space environments [14]. - The findings from this research are expected to inform strategies for human space travel and health [14].