Reference: McCullough, J.D. and Lee, R.D., 1980. An ecological study of the rare rotifer species Trochosphaera solstitialis (Thorpe 1893) and the first report of the male. Hydrobiologia, 71(1-2), pp.7-18.
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.
The stylet also inserts something into the other slug that increases it’s fertility.
Reference: Anthes, N. and Michiels, N.K., 2007. Precopulatory stabbing, hypodermic injections and unilateral copulations in a hermaphroditic sea slug. Biology Letters, 3(2), pp.121-124.
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.
Reference: Austin, C.R., and Short, R.V. eds., 1986. Reproduction in Mammals. Cambridge University Press.
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.
References:
Brennan, P.L., Clark, C.J. and Prum, R.O., 2010. Explosive eversion and functional morphology of the duck penis supports sexual conflict in waterfowl genitalia. Proceedings of the Royal Society B: Biological Sciences, 277(1686), pp.1309-1314.
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.
Reference: Johnston, S.D., Smith, B., Pyne, M., Stenzel, D. and Holt, W.V., 2007. One-sided ejaculation of echidna sperm bundles. The American Naturalist, 170(6), pp.E162-E164.
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.
Reference: Chapman, R.F. and Chapman, R.F., 1998. The insects: structure and function. Cambridge university press.
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.
Reference: Davison, Angus, 2019. Leopard slugs mate in the most beautifully bizarre way – and nobody knows why. The Conversation. https://theconversation.com/leopard-slugs-mate-in-the-most-beautifully-bizarre-way-and-nobody-knows-why-128284
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.
These poor worms in phyla Priapulida mate through external fertilization.
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.
Reference:
edyong209, 2013. Alligator penis surprise. SERIOUSLY WATCH THIS! Youtube. Attributed to Brandon Moore.
Kelly, D.A., 2013. Penile anatomy and hypotheses of erectile function in the American alligator (Alligator mississippiensis): muscular eversion and elastic retraction. The Anatomical Record, 296(3), pp.488-494.
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.
Reference: Keogh, J.S., 1999. Evolutionary implications of hemipenial morphology in the terrestrial Australian elapid snakes. Zoological Journal of the Linnean Society, 125(2), pp.239-278.
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 