References:
Austin, C.R., Austin, C.R. and Short, R.V. eds., 1986. Reproduction in Mammals. Cambridge University Press.
Böhm, CC BY 2.5 <https://creativecommons.org/licenses/by/2.5>, via Wikimedia Commons
This is a series of little illustrated factoids about animal reproduction, posted daily. I’d love to hear your suggestions/ feedback. I also post these on my insta.
birdoptera 