AILINCOM 
CursusA study of ancient footprints on the shore of a lake in Kenya has revealed inconsistencies between the structure of the hominin foot and their body size, making it difficult to determine their species. These discoveries also offer a rare glimpse into the social behavior of ancient primates.
CursusAmerican geneticists have discovered that the absence of Neanderthal genes on the X chromosome in modern humans is not due to biological incompatibility, but rather to the mating preferences of ancient people. The study showed that Neanderthal men more often formed unions with Homo sapiens women, while hybrid men rarely left descendants, which influenced the genetic makeup of future generations.
CursusThe experiment showed that male zebra finches can maintain their individual color preferences when building nests, even if most of their peers choose a different color. The key factor is the balance between personal preferences and the influence of the group.