Uploaded August 2021 | Updated September 2026, 3 weeks ago

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A new study has found that Betta fish have been domesticated by us for between 1000-7000 years. Probably our very first pet fish. They are popular worldwide, known for their feisty behavior and the vibrant beauty of their colors and fins. Now let's get to know how we've changed them over a thousand years, from their sex determination to the way their fins look. Enjoy!

#bettafish #wildbettafish #genetics

References:
1. nytimes.com/2021/05/14/science/betta-fish-breeds.html
2. the-scientist.com/news-opinion/my-daughter-s-first-pet-the-next-big-model-organism-68977
3. Genomic consequences of domestication of the Siamese fighting fish
Kwon et al, preprint, biorxiv.org/content/10.1101/2021.04.29.442030v1
4. The genetic architecture of phenotypic diversity in the betta fish (Betta splendens), Zhang et al, preprint,
biorxiv.org/content/10.1101/2021.05.10.443352v1

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