While the overall memories of an experience are stored in the hippocampus, individual details are parsed and stored in the prefrontal cortex.
Researchers suggest that when in a group, ants behave in a similar fashion to networks of neurons in the brain.
Mice with the Alzheimer's disease-associated APOE4 and the APOE2 genes were more likely to die from COVID-19 than those with the APOE3 gene. Those with APOE4 and APOE2 genes had more virus replication in the lungs, higher inflammation, and increased tissue damage following coronavirus infection.
Study of fruit flies reveals genetic mutations are common in the testes of both young and old males, but the mutations are more abundant in older insects. Many of the mutations are removed in the younger flies during spermatogenesis by the body's genetic repair mechanism, but spermatogenesis fails to repair the mutations in older flies.
