Neolithic cut stone drill found in North Africa. This tool measures 14cm in length.

---

Size: 6277px × 9417px
Photo credit: © ***DEPENDS ON PIC***/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, biological, biology, columnar, eosin, epididymis, epithelium, genital, haematoxylin, hematoxylin, histological, histology, human, light, lm, male, micrograph, microscopy, mitosis, paraffin, photomicrograph, pseudostratified, reproductive, section, spermatozoa, stereocilia, system, testicular