自然界的“远房亲戚”：千万年前，大家都有同一个“妈”丨致敬母亲节

Group 1 - The article highlights the evolutionary connections between various animal species, emphasizing that many seemingly unrelated creatures share common ancestors and maternal instincts [5][12][35] - It discusses the maternal behaviors of different species, illustrating how these behaviors have been passed down through generations, such as the unique nursing techniques of whales and hippos [10][14][38] - The article also mentions the surprising relationships between species like shrimp and isopods, showcasing how their ancestors transitioned from aquatic to terrestrial environments [19][20][24] Group 2 - The piece elaborates on the ancient lineage of horseshoe crabs and scorpions, noting their shared evolutionary traits and reproductive strategies [27][30] - It describes the nurturing methods of stingrays and sharks, highlighting the stark differences in their reproductive approaches despite their close genetic ties [44][47] - The article concludes by emphasizing the importance of modern DNA technology in uncovering these relationships and the significance of maternal care across species in the evolution of life [56][58]