The multi‐scale architecture of mammalian sperm flagella and implications for ciliary motility gan Leung, MR, Roelofs, MC, Ravi, RT, Maitan, P, Henning, H, Zhang, M, Bromfield, EG, Howes, SC, Gadella, BM, Bloomfield‐Gadêlha, H, Zeev‐Ben‐Mordehai, T