One of the earliest known mammals to develop lactation, described as a furry creature resembling a cross between a weasel and a mouse. Her evolution marked the beginning of the mammalian class, contributing significantly to mammalian development.

The first placental mammal known to give birth to live young, surviving after the Chicxulub disaster. She provided early protection for her offspring through the development of a uterus and placenta.

An early primate known for her heightened senses, including hearing, smell, and sight, which aided her survival in trees after the Chicxulub event. Her evolution laid the groundwork for sensory perception in primates.

A pre-human species known for being the first to walk upright on two legs. This development in bipedalism marked a significant evolutionary milestone towards modern human locomotion.

Credited with creating simple tools and advancing early human social structures. Her contributions include early practices in reproductive health and collaboration among females.

A pre-human known for her advanced toolmaking and larger brain size, which enabled her and her descendants to spread across the Earth. Her evolution set the stage for further cognitive developments in human history.

The species of modern humans known for their complex language, cognition, and adaptability. Despite reproductive challenges, their problem-solving skills and innovative capacities have made them a dominant species.