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What is paedomorphosis in amphibians?
Quick Answer
Paedomorphosis is when an adult amphibian keeps juvenile features, such as gills, instead of fully changing into the usual adult form.
The Full Story
Paedomorphosis is a developmental pattern in which sexually mature adults retain traits that are normally seen only in larvae or juveniles. The best-known example is the axolotl, which often keeps its external gills and aquatic lifestyle instead of undergoing a typical metamorphosis. This phenomenon can evolve when remaining in a juvenile body form offers an advantage in a stable aquatic habitat. Paedomorphosis is one reason amphibians are so evolutionarily diverse.
Key Facts
1.Axolotls are a classic paedomorphic amphibian
2.Adults may retain external gills
3.It involves sexual maturity with juvenile traits
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Suggested video title for this topic:
"The amphibian that refuses to grow up the usual way"
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