Answer to What is This on the Cover of American Laboratory November/December

The image on the cover of American Laboratory November/December showed osteocytes (bone cells) from fibrillar compact triceratops horn bone. The tissues were aldehyde-fixed and cryosectioned at 10 μm thickness. The image was captured at 400× magnification using brightfield microscopy by Mark H. Armitage (EM Lab—California State University Northridge, Biology Department, Northridge, CA, U.S.A.).

Congratulations to Lymemonkey, the winner of this month’s Amazon gift card.

If you have an image you would like to submit for use on one of our covers please contact