Evolution
Rodent Evolution Study on Hand Structures
A study on the evolution of rodents emphasized the importance of hand structures, featured in Science Magazine's September 4, 2025, issue. It explores 'rules of thumb' in rodent development.
Fossil fish rewrites otophysan evolution history
A tiny fossil fish discovered in southwestern Alberta is the oldest North American otophysan, offering new insights into the evolution of freshwater fish species. Named Acronichthys maccognoi, the 4 cm specimen from the Late Cretaceous period suggests otophysans transitioned from marine to freshwater environments at least twice. The find, detailed in a study published on October 2 in Science, challenges previous understandings of their global spread.
Evolution may explain why women outlive men
2 Mwezi wa kumi, 2025 Imeripotiwa na AI
A new study suggests that the evolution of menopause plays a key role in women's longer lifespans compared to men. Researchers propose that post-reproductive life in women allows investment in grandchildren, contrasting with men's continued reproduction. This theory draws on data from hunter-gatherer societies and modern populations.
First Nitrogen-Fixing Organelle Confirmed
12 Mwezi wa tisa, 2025 Imeripotiwa na AI
Scientists have confirmed the existence of the first-ever nitrogen-fixing organelle in a eukaryotic cell, marking a key advancement in understanding cellular evolution and nitrogen cycles.