Bird Flu Outbreaks in Animals and Humans

Bird flu, specifically the H5N1 strain, has been spreading globally in animals since 2020, causing lethal outbreaks in poultry and sporadic infections in other species. There have been cases of bird flu found in dairy cows and humans in various countries. The risk of human-to-human transmission is a concern, but the World Health Organization states the current risk is low.

The Extinction of the Y Chromosome and the Evolution of New Human Species

The Y chromosome is shrinking and some scientists worry it could disappear altogether, potentially leading to the evolution of new species of humans with different sex determining genes. This has already happened with certain rodent species. However, the implications for humans are still uncertain.