Nov 18
Meaning of Collate in Terms of Printing
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Archive for the 'sex' Category
Nov 04
Fragment from the ‘The Learning Channel’ documentary ‘The human animal’ (1994). Host: Desmond Morris
I do not own this material
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Oct 21
“Sex Copulation” This movie was shot based on true life stories, to educate our young ones and adult not to go into prostitution or crime….. “Subscribe Now” and “Click On The Notification Button” so you would be notified when we upload the part two
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Oct 08
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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Aug 27
Dozens of male common toads jockey for position, as they try to mate with the single female – and they can be pretty rough about it. It’s the most unrefined of rituals, a stark contrast to the very regal surroundings of Neuschwanstein.
From the Series: Wild Castles: Neuschwanstein http://bit.ly/2SRqKXb
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In a dangerous quest to find a mate, the hourglass tree frog must navigate Costa Rica’s rainy season in near-complete darkness.
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Frog Mating Season | Untamed
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Jul 30
A newly coupled lion and lioness head to the relative solitude of the higher grounds in their new kingdom of Rwanda. Over the next four days, they’ll mate over 100 times a day.
Watch the Full Episode with your FREE trial for Smithsonian Channel Plus by signing up today at https://watch.smithsonianchannel.com/
From the Show: Lions Unleashed
http://bit.ly/LionsUnleashed
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Jul 16
A girl chicken is called a hen.
A boy chicken is called a rooster.
A hen lays an egg every day, but unless there is a rooster the egg will not be fertile and will never hatch into a baby.
The rooster jumps on the hen and breeds her and the egg gets fertilized inside the hen before she lays it. Chickens are not like fish or frogs where the egg is fertilized outside, with chickens the egg is fertilized inside the hen.
It’s important to keep an eye on the rooster and make sure he’s not too aggressive and hurting the hens. A polite rooster will do a little mating dance to trigger the breeding.
If there is a rooster with the hen the eggs she lays will be fertile, and if she sits on the fertile eggs for 21 days they will hatch into baby chickens.
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May 21
This is the #pronunciation of #copulation in British #English + a few examples of its pronunciation in phrases and sentences.
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Mar 19
Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!
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