Top videos
Godfrey Nzamujo from the Songhai Centre in Benin describes the organization’s role in promoting agroecological approaches to farming. The interview was recorded in occasion of the International Symposium on Agroecology for Food Security and Nutrition, held at FAO HQ in Rome on 18-19 September 2014.
© FAO: http://www.fao.org
http://www.fao.org/about/meetings/afns/en/
Ethiopia is constructing a $4.8 billion dam along the Nile River that has Egypt angry. The Grand Ethiopian Renaissance Dam, or GERD, will have a capacity of 6.45 GW, doubling the country’s power capacity. It will provide electricity to 60% of Ethiopian households and create a massive reservoir for tourism and the fishing industry. However, the project poses a threat to Egypt, who relies heavily on the Nile River. This has led to tensions between the nations and a political battle over the river.
If you enjoyed this video, please consider liking and subscribing for more videos very similar to this one!
If you enjoy Futurology, please consider helping me on Patreon! It means the world. :D
https://www.patreon.com/futurology_
Thank you to the following sources!
Information
https://www.bbc.com/news/world-africa-53573154
https://www.reuters.com/articl....e/us-ethiopia-dam-fa
https://www.hydropower.org/cas....e-studies/ethiopia-g
https://www.power-technology.c....om/projects/the-gran
https://www.middleeasteye.net/....news/grand-ethiopia-
https://en.wikipedia.org/wiki/....Grand_Ethiopian_Rena
https://www.brookings.edu/blog..../africa-in-focus/202
Audio
Storyblocks
Graphics
Storyblocks
Google Earth
Sequential hermaphroditism occurs when an organism changes sex at some point in its life. It’s seen in a few species of gastropods and plants, but mostly fish, like napoleon wrasse, clownfish, groupers and marine angelfish. This transformation involves the complete restructuring of their gonads, as well as changes in their morphology and behaviour. For these fish, sex change is a usual part in their life cycle, and it’s one that carries adaptive advantages.
Please like, comment and subscribe if you enjoy the video!
All images and videos used herein are 1) in the public domain, 2) used under a Creative Commons license, 3) used with a license, or 4) used under the parameters of Fair Use law.
References:
Avise JC & Mank JE. Evolutionary perspectives on hermaphroditism in fishes. Sex Dev 2009;3:152–163.
Berglund A. Sequential hermaphroditism and the size-advantage hypothesis: an experimental test. Anim Behav 1990;30:426–433.
Todd EV, et al. Bending genders: the biology of natural sex change in fish. Sex Dev 2016;10:223–241.
Casas L, et al. Sex change in clownfish: molecular insights from transcriptome analysis. Sci Rep 2016;6:35461.
Goikoetxea A, et al. Stress and sex: does cortisol mediate sex change in fish? Reproduction 2017;154:R149–R160.
Kazancioğlu E & Alonzo SH. Costs of changing sex do not explain why sequential hermaphroditism is rare. Am Nat 2009;173:327–336.
Waples RS, et al. Consequences of sex change for effective population size. Proc Biol Sci 2018;285:20181702.
Muñoz RC & Warner RR. A new version of the size-advantage hypothesis for sex change: incorporating sperm competition and size-fecundity skew. Am Nat 2003;161:749–761.
Credits:
ふうけ. https://commons.wikimedia.org/....wiki/File:Kobudai150
prilfish. https://www.flickr.com/photos/....silkebaron/232002459
Rickard Zerpe. https://commons.wikimedia.org/....wiki/File:Orange_sku
Sasuke Tsujita. https://www.youtube.com/watch?v=GD2-ZZsWBYs&ab_channel=SasukeTsujita
フリッパーダイブセンター 群馬県伊勢崎市のダイビングショップ FLIPPER dive center. https://www.youtube.com/watch?v=-5YLywPkUjM&ab_channel=%E3%83%95%E3%83%AA%E3%83%83%E3%83%91%E3%83%BC%E3%83%80%E3%82%A4%E3%83%96%E3%82%BB%E3%83%B3%E3%82%BF%E3%83%BC%E7%BE%A4%E9%A6%AC%E7%9C%8C%E4%BC%8A%E5%8B%A2%E5%B4%8E%E5%B8%82%E3%81%AE%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E3%82%B7%E3%83%A7%E3%83%83%E3%83%97FLIPPERdivecenter
https://www.youtube.com/watch?v=4sr7rPhfWCc&ab_channel=SCUBADIVINGPRO-SHOPMAHI-MAHI
Rickard Zerpe. https://commons.wikimedia.org/....wiki/File:Yellow_clo
Carl Malamud. https://commons.wikimedia.org/....wiki/File:Yellow_Gob
Rickard Zerpe.
https://www.flickr.com/photos/....krokodiver/238064296
alif_abdulrahman. https://www.flickr.com/photos/....alif_abdulrahman/188
aquarist.me. https://www.flickr.com/photos/....aquarist/7075443335/
Christian Gloor. https://www.flickr.com/photos/....christian_gloor/3020
Christian Gloor. https://www.flickr.com/photos/....christian_gloor/3150
#sexchangingfish #sexchange #naturalselection #hermaphroditism #sequentialhermaphroditism #hermaphrodite #biology #evolutionarybiology #zoology #clownfish #kobudai #asiansheepshead
The Ka Institute reads, "Freedom! The Untold Story of Benkos Bioho and the World's First Maroons: A True Story."
#TheKaInstitute
https://www.amazon.com/Freedom....-Untold-Benkos-World
https://www.authorhouse.com/en..../bookstore/bookdetai
The Irie FM annual Marcus Garvey Celebration (brain child of Kabu Maat Kheru) invited Professor Bayyinah Bello (Mama Bello) as the guest speaker at their annual event in 2018.
Irie FM Marcus Garvey Celebration August 2018
To support the work of Fondayson Felicite in Haiti visit: http://www.friendsoffelicite.co.uk/
Don't just TALK it WILL it - everybody has their role to play. What is your role?
Don't forget to Subscribe to the ANKHOBIA channel. Thanks for checkin' in.