Webbed feet
Webbed toes is the common name for syndactyly. Webbed feet happens when two or more toes grow together instead of separately. This is common in many birds such as ducks. It is also common in amphibians such as frogs and mammals such as kangaroos. In humans, it is not normal. It only happens to 3-10 in 10,000 live births.[1]
| Webbed toes | |
|---|---|
| Classification and external resources | |
 Human foot with syndactyly | |
| ICD-10 | Q70.3 |
| ICD-9 | 755.13 |
Famous people with webbed feet
- Dan Aykroyd – Canada, actor[2]
- Jacqui Hurley - Ireland, sports broadcaster[3]
- Ashton Kutcher - United States, actor[4]
- Joseph Stalin – Soviet Union, General Secretary of the Communist Party of the Soviet Union[5]
Webbed Feet Media
A Mute Swan's webbed feet as seen when the bird is standing on land in Somerset, England.
Unlike other waders, Pied avocet has webbed foot, and can swim well.
The webbed foot of Rana temporaria, the common frog. Here, the foot has a delta (triangular) shape that allows for the formation of leading edge vortices and likely increases swimming efficiency.
Bats have also developed interdigital webbing for flight. Reductions in the BMP-induced apoptosis likely allowed this trait to arise.
A phylogenetic tree of vertebrate taxa. The classes highlighted in red contain species with webbed feet. In all these cases, webbed feet arose homologously and independently of other classes through convergent evolution.
Webbing and lobation in a bird's right foot
Ornithorhynchus anatinus Copyright (c) 1995 E.Lonnon.
References
- ↑ Malik, Sajid (2012). "Syndactyly: phenotypes, genetics and current classification". European Journal of Human Genetics. 20 (8): 817–824. doi:10.1038/ejhg.2012.14. PMC 3400728. PMID 22333904.
- ↑ Saner, Emine (2007-09-19). "Soul survivor". The Guardian (London). http://film.guardian.co.uk/news/story/0,,2172314,00.html. Retrieved 2008-01-01.
- ↑ Tubridy, Ryan (31 August 2011). "Here's what happened on today's show...". Tubridy (RTÉ 2fm). http://2fm.rte.ie/blogs/tubridy/2011/08/tubridy-wednesday-49.html. Retrieved 17 July 2012. "RTE's sports presenter Jacqui Hurley called in to tell Ryan that she also as webbed toes! Jacqui has two webbed toes on each foot. When Jacqui was younger she tried to cut them to make 'normal toes'! Now Jacqui has come to love her toes! Her Brother and Dad also have webbed feet.".
- ↑ "Star Tracks (People magazine)". 16 April 2005. Retrieved 2008-03-27.
- ↑ ""Among the Dead", MississippiReview.com". Archived from the original on 2008-03-18. Retrieved 2008-03-27.
Books
- Man LX, Chang B (January 2006). "Maternal cigarette smoking during pregnancy increases the risk of having a child with a congenital digital anomaly". Plastic and Reconstructive Surgery. 117 (1): 301–8. doi:10.1097/01.prs.0000194904.81981.71. PMID 16404282. S2CID 40458580.