Modern IVF achieves higher success rates with single embryo transfer, major study finds
Reports and Proceedings
Updates every hour. Last Updated: 25-Oct-2026 00:17 ET (25-Oct-2026 04:17 GMT/UTC)
High-speed movies of microscopic worms may sound like a dull night at the cinema, but this advanced imaging capability could help scientists better understand how diseases begin and progress, track subtle changes in cells and study how the body responds to treatments.
A new study reveals that exposing dwarf spiders to a brief period of warm temperatures can disrupt a phenomenon where internal bacteria normally force genetic males to develop as females. Surprisingly, this reproductive disruption skips the directly heated spiders and hits their children and grandchildren instead, leading to a sudden comeback of male offspring. The temporary heat scrambles the spiders' internal microscopic ecosystem, allowing a rival bacterium to surge ahead and block the feminizing bacteria from taking over.
New research finds that birds can use lactate, often thought of as a metabolic waste product, as a cellular fuel that aids in rapid recovery from a harmful state that impairs oxygen delivery. Haemoglobin, the protein that carries oxygen to our tissues, naturally converts to methaemoglobin, which limits the blood’s oxygen-carrying capacity. This research shows how bird red blood cells (RBCs) can use lactate to rapidly resurrect blood function, and they can do this better than mammals because they contain mitochondria — the “powerhouses of the cell” — something that mature mammalian RBCs do not possess.