birdoptera

mammals

  • Putting the bone in boner

    Reference: Austin, C.R., and Short, R.V. eds., 1986. Reproduction in Mammals. Cambridge University Press. This is…

  • four times the fun?

    Reference: Johnston, S.D., Smith, B., Pyne, M., Stenzel, D. and Holt, W.V., 2007. One-sided ejaculation of…

  • “a whole bunch of spiraling folds”

    I this quote from Drs. Kelly and Orbach in this Discover Magazine article really sums harbor…

  • The one-eyed snake

    Reference: 4028mdk09, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0&gt;, via Wikimedia Commons Also, I highly recommend this youtube video…