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Why is the blue-ringed octopus so dangerous?

The small but mighty blue-ringed octopus produces the most toxic venom of any cephalopod. (Image credit: Belive… via Getty Images) Octopuses have long earned a reputation for being clever camouflagers and intelligent creatures. But some are known for a darker…

Scientists Grow Mini Amniotic Sacs in Lab Using Stem Cells

This image shows one of the new laboratory models, known as PGA, at day 18 of growth. PGA is composed of two distinct cell populations (purple, extraembryonic mesoderm; yellow, amniotic endoderm). (Image credit: Gharibi, B. (2025). Cell.) Researchers have created…