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Selfish sperm hijack genetic gatekeeper to kill healthy rivals

A new study reveals that selfish chromosomes exploit the Overdrive gene to destroy rival sperm, boosting their chances of passing into the next generation. The gene acts as a quality control checkpoint during sperm development, normally eliminating abnormal sperm cells, but selfish chromosomes hijack the system to kill competitors.

Timing of US school desegregation, late-life cognition in Black Adults

A study of 699 Black participants found that transitioning to an integrated school between grades 1-6 was associated with improved cognitive aging outcomes. Those who attended integrated schools had statistically significant advantages in executive function and semantic memory compared to those who only attended segregated schools.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.