Biology
The Evolution of Eusociality in Rodents: A Comparative Analysis
Quick fact
Naked mole-rats are among the only two mammal species that are truly eusocial—they live in colonies where a single queen reproduces while the rest act as workers, and they can even survive for several minutes without oxygen as an adaptation to their crowded, underground tunnels.
Why this is interesting
You've heard of bee and ant colonies with queens and workers—but did you know that a handful of mammals, including a hairless burrowing rodent, have evolved the same extreme social system?