Category Archives: mammals

animals, dailypeen, digital art, factoids, mammals

“a whole bunch of spiraling folds”

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‘Give it to me’ has a new meaning

I this quote from Drs. Kelly and Orbach in this Discover Magazine article really sums harbor porpoises up well:

“An erect harbor porpoise penis goes up to its chin — or, where its chin would be, if it were not a marine mammal,” Kelly said. And their vaginas are the most complex of the four, with “a whole bunch of spiraling folds,” Orbach explained, “which just keep twisting around … a little bit like a corkscrew.”

But these journal articles are also really interesting reads (and they’re both open access, I believe).

Orbach, D.N., Kelly, D.A., Solano, M. and Brennan, P.L., 2017. Genital interactions during simulated copulation among marine mammals. Proceedings of the Royal Society B: Biological Sciences, 284(1864), p.20171265.

Orbach, D.N., Marshall, C.D., Mesnick, S.L. and Würsig, B., 2017. Patterns of cetacean vaginal folds yield insights into functionality. PloS One, 12(3), p.e0175037.

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.

animals, dailypeen, digital art, factoids, mammals

The one-eyed snake

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I recommend watching some youtube videos about this, because those penises are out there, waving around like giant snakes.

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 about collecting sperm from an elephant.

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.

animals, dailypeen, digital art, factoids, mammals

four times the fun?

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Echidnas are like hedgehogs if they were marsupials instead of… whatever hedgehogs are.

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.

animals, dailypeen, digital art, factoids, mammals

Putting the bone in boner

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Not saying human copulation is short, but… there’s no bone in your boner, friend.

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.