Why do dogs stick when they mate? In this new video from AnimalWised we will answer this question and explain in a clear and simple way why dogs get locked together after mating. If you have ever witnessed this situation or simply would like to know the reason for behavior, discover with us why dogs get stuck when they mate, something that happens during the canine copulation process. This mating process is required for the different stages of insemination to occur. We also show you why it is so important not to separate dogs which are stuck during mating. If you want to know a little more, you can go over to our site to read the original article: https://www.animalwised.com/why-do-dogs-get-stuck-when-mating-the-answer-2432.html

On AnimalWised you’ll discover a high quality channel that’s exclusively devoted to the Animal Kingdom. You’ll find all sorts of content: from training, diet or beauty and everything that can be useful for you as a pet owner or animal lover. Want to become AnimalWised? Take a look and have fun with us!

AnimalWised Web – https://www.animalwised.com/
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Thanks to 23andMe for sponsoring this video! https://www.23andme.com/minuteearth

Male birds have the largest genital diversity of any class of animals because their sex chromosomes make it easy to pass male-helping mutations down the line.

Thanks also to our supporters on https://www.patreon.com/MinuteEarth
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To learn more, start your googling with these keywords:
Sex chromosome: A chromosome involved in determining the sex of an individual.
Cloaca: A posterior orifice that serves as the only exit for the gastrointestinal, urinary and genital tracts.
Mutation: An alteration in the DNA sequence that makes up a gene.
Sexually-selected Trait: A trait based on a mutation that confers a reproductive advantage.
BMP4: A protein whose presence halts the growth of bird penises in the egg.
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If you liked this week’s video, you might also like:
An article from The Week about some of the strangest penises in the animal kingdom: http://theweek.com/articles/474417/12-weirdest-animal-penises-earth-updated
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Credits (and Twitter handles):
Script Writer: David Goldenberg (@dgoldenberg)
Script Editor: Kate Yoshida (@KateYoshida)
Video Illustrator: Ever Salazar (@eversalazar)
Video Director: Emily Elert (@eelert)
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Alex Reich, Peter Reich
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder

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References:

Brennan, P. and Prum, R. (2015). Mechanisms and Evidence of Genital Coevolution: The Roles of Natural Selection,Mate Choice, and Sexual Conflict. 1-21. Cold Spring Harbor Perspectives in Biology. Retrieved from: http://cshperspectives.cshlp.org/content/7/7/a017749.abstract

Brennan, P. (2013). Genital Evolution: Cock-a-Doodle-Don’t. Current Biology. R523-R525. Retrieved from: http://www.sciencedirect.com/science/article/pii/S0960982213004430

Brennan, P., Birkhead, T., Zyskowski, K., van der Waagand, J., and Prum, R. (2008). Independent evolutionary reductions of the phallus in basal birds. Journal of Avian Biology, 39: 487-492. Retrieved from: http://onlinelibrary.wiley.com/doi/10.1111/j.0908-8857.2008.04610.x/abstract.

Briskie, J. and Montgomerie, R. (1997). Sexual selection and the intromittent organ of birds. Journal of Avian Biology. 28: 73-86. Retrieved from: https://www.jstor.org/stable/3677097?seq=1#page_scan_tab_contents

Herrera, A., Brennan, P., and Cohn, M. (2014). Development of Avian External Genitalia: Interspecific Differences and Sexual Differentiation of the Male and Female Phallus. Sexual Development. 9: 43-52. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/25011524.

Reinhold, K. (1998). Sex linkage among genes controlling sexually selected traits. Sexual Selection. 44:1-7. Retrieved from: https://link.springer.com/article/10.1007/s002650050508.

Image Credits:

Mandarin Ducks – Francis C. Franklin
https://commons.wikimedia.org/wiki/File:Pair_of_mandarin_ducks.jpg

Gorillas – Based on photo by Wikimedia user No escape
https://commons.wikimedia.org/wiki/File:Gorillafamily.JPG

Lake Duck Penis – Kevin McCracken (Published in Nature 2001)

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