Core Insights - The successful breeding of mice in space and their subsequent offspring provide valuable insights into the effects of space environments on mammalian reproduction and development [1][2][4]. Group 1: Space Experiment Results - One female mouse successfully became pregnant after returning to Earth, with the birth of 9 offspring, of which 6 survived, indicating a normal survival rate [1][2]. - The behavior of the space-returned mice showed significant differences compared to the control group, particularly in maternal instincts, as they preferred to give birth in a designated shelter and exhibited heightened protective behaviors [2][3]. Group 2: Research Methodology - The selection process for the experimental mice involved rigorous screening over 60 days, narrowing down from 300 candidates to 4 mice, ensuring their adaptability to the space environment [3]. - A specialized habitat was developed to control environmental factors such as oxygen levels, temperature, humidity, and lighting, ensuring the safety of both the mice and astronauts [3]. Group 3: Future Research Plans - Ongoing research will monitor the health and behavior of the returned mice and their offspring, focusing on physiological changes, metabolic levels, reproductive capabilities, and potential genetic impacts across generations [4][5]. - The study aims to provide insights into human health and the development of effective protective strategies for space travel, enhancing the understanding of the implications of space environments on reproduction and growth [5].