This #lab #creation looks a bit like a squashed bug, but it’s actually a lab-grown collection of #cells engineered to resemble the #human #mammary gland. Mammary glands are modified sweat glands present in female #mammals to supply #milk to their young. #photooftheday #science #biology #micro 📷: Whitehead Institute for Biomedical Research/Daniel Miller, Ethan Sokol