This animal study exposed zebrafish embryos to static electromagnetic fields for 63 days post-hatching across aquariums positioned 30–99 cm from the source, with an EMF-free control. The abstract reports strong shifts in sex distribution (including 100% female at the closest distance), markedly reduced survival in exposed groups, and histological liver and gonadal damage. The authors frame the findings as evidence of potential ecological risk via disrupted sex ratios and compromised health.