| Toad | |
|---|---|
| |
| European fire-bellied toad (Bombina bombina), a member of the family Bombinatoridae | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Clade: | Salientia |
| Order: | Anura Merrem, 1820 |
| Families | |
Toad is a common name for certain frogs, especially of the family Bufonidae, that are characterized by dry, leathery skin, short legs, and large bumps covering the parotoid glands.[1][2]
A distinction between frogs and toads is not made in scientific taxonomy, but is common in popular culture (folk taxonomy), in which toads are associated with drier, rougher skin and more terrestrial habitats.[3]
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Transcription
List of toad families
In scientific taxonomy, toads include the true toads (Bufonidae) and various other terrestrial or warty-skinned frogs.
Non-bufonid "toads" can be found in the families:[4]
- Bombinatoridae (fire-bellied toads and jungle toads)
- Calyptocephalellidae (helmeted water toad and false toads)
- Discoglossidae (midwife toads)
- Myobatrachidae (Australian toadlets)
- Pelobatidae (European spadefoot toad)
- Rhinophrynidae (burrowing toads)
- Scaphiopodidae (American spadefoot toads)
- Microhylidae (narrowmouth toads)
Biology
Usually the largest of the bumps on a toad's skin are those that cover the parotoid glands. The bumps are commonly called warts, but they have nothing to do with pathologic warts, being fixed in size, present on healthy specimens, and not caused by infection.[2] It is a myth that handling toads causes warts.[2][5]
Toads travel from non-breeding to breeding areas of ponds and lakes. Bogert (1947) suggests that the toads' call is the most important cue in the homing to ponds. Toads, like many amphibians, exhibit breeding site fidelity (philopatry). Individual American toads return to their natal ponds to breed, making it likely they will encounter siblings when seeking potential mates. Although inbred examples within a species are possible, siblings rarely mate.[6] Toads recognize and avoid mating with close kin. Advertisement vocalizations given by males appear to serve as cues by which females recognize kin.[7] Kin recognition thus allows avoidance of inbreeding and consequent inbreeding depression.
Habitat
In the United Kingdom, common toads often climb trees to hide in hollows or in nest boxes.[8]
Cultural depictions
In Kenneth Grahame's novel The Wind in the Willows (1908), Mr. Toad is a likeable and popular, if selfish and narcissistic, comic character. Mr. Toad reappears as the lead character in A. A. Milne's play Toad of Toad Hall (1929), based on the book.[9][10]
In Chinese culture, the Money Toad (or Frog) Jin Chan appears as a feng shui charm for prosperity.[11]
See also
References
- ^ "toad". The American Heritage Dictionary of the English Language. Houghton Mifflin Harcourt. Retrieved 6 October 2016.
- ^ a b c "toad | amphibian". Encyclopedia Britannica. Retrieved 2017-05-23.
- ^ "Toad". Dictionary.com, LLC. Retrieved 29 May 2012.
- ^ "Anura, Taxonomic Serial No.: 173423". ITIS Report. Integrated Taxonomic Information System. Retrieved 20 April 2012.
- ^ Butts, Wilbur K. (1933). "Error and Superstition in Biology". BIOS. 4 (2): 52–60. JSTOR 4603978.
- ^ "American Toad". psu.edu.
- ^ Waldman B, Rice JE, Honeycutt RL. Kin recognition and incest avoidance in toads. Am. Zool. 1992. 32:18-30.
- ^ "Common toads surprise biologists by climbing trees".
- ^ "The Big Read Top 200". BBC. April 2003. Retrieved 28 June 2016..
- ^ Christine Paik (2002-03-19). "100 Best Characters in Fiction Since 1900: From Book Magazine, March/April 2002". Talk of the Nation. NPR. Archived from the original on 8 April 2002. Retrieved 2013-02-26.
- ^ "Feng Shui Money Frog". Archived from the original on 1 May 2014. Retrieved 28 June 2016.
External links
- . Encyclopædia Britannica. Vol. 26 (11th ed.). 1911. p. 1035.
This page was last edited on 3 January 2024, at 18:21