Male mice can grow female organs - if their mothers lack iron

"Research suggests that iron deficiency in pregnant mice can lead to offspring developing female sex organs despite male genetic coding, indicating environmental factors play a role in sex determination."

"A groundbreaking study found that small-scale fishers significantly contribute to global sustainability, providing about 40% of the catch and feeding 25% of the population, highlighting their essential role."

Recent research reveals that iron deficiency in pregnant mice can disrupt sex determination, leading to male mice being born with female reproductive structures. This challenges the long-held belief that genetics solely dictate sex in mammals. In another study, the often-overlooked contributions of small-scale fishers to global food security and ocean sustainability were highlighted, showing they account for around 40% of global fish catch and feed roughly a quarter of the world's population, emphasizing their critical role in sustainable fishing.

Read at Nature