LifeAnts craft tiny sponges to dip into honey and carry it home Non-expandable stomachs mean these ants need to use absorbent tools to transport tasty liquids to their nests – and they figure out the best objects for the job News
HumansAre caesareans really making us evolve to have bigger babies? C-sections mean that babies whose heads are too big or whose mothers’ pelvises are too narrow, are able to survive – a fact that might be changing our species News