Evolution in action
Shmuel is worried about our future, the men "I heard that the male Y chromosome is diminishing over time, is it possible that every generation male mammals are losing more and more of their characteristics? Is it possible that they will disappear?"
Large mammals give birth to a smaller number of offspring in each litter, so the risk of extinction increases. In amphibians, on the other hand, large females actually lay more eggs, so in amphibians it is precisely the smaller animals that are in danger of extinction
In a study published in Nature Communications, Dr. Yonatan Friedman and PhD student Nitai Maroz from the Faculty of Food and Environmental Agriculture at the Hebrew University bring science closer to engineering a unique microbiome for specific needs in humans, animals, plants and the environment