Arendt et al. discuss several metrics of phenotypic parallel evolution including one that does not actually measure parallelism. They suggest use of a partial Eta-squared of the interaction term between Habitat and Replicate as an appropriate metric.

Read now ahead of print!
https://www.journals.uchicago.edu/doi/10.1086/736845

#evolution #parallelism #habitat #phenotypes #parallelEvolution

Separate but similar evolution of brain structures in intelligent birds and mammals:

https://www.quantamagazine.org/intelligence-evolved-at-least-twice-in-vertebrate-animals-20250407/

#Science #Cognition #Evolution #ParallelEvolution #Birds #Primates

Same species, different sizes: Rare #evolution in action spotted in island bats https://phys.org/news/2024-04-species-sizes-rare-evolution-action.html

#ParallelEvolution in an island archipelago https://academic.oup.com/evolut/advance-article/doi/10.1093/evolut/qpae039/7624587

"Although they are very different sizes, the #bats' DNA is very similar. They use very different #sonar frequencies, they probably eat different food, and even when they live in the same cave together they don't interbreed. That is why no one has ever really questioned whether they were different species"

Happy #EarthDay

Some years back sampling in the #Icelandic #Highlands #Hvannalindir Freshwater springs the feed small ponds. Home to dwarf charr that has evolved (and acclimated) to these conditions in the last 10.000 years.
Perfect system to study #ParallelEvolution
#UniversityIceland

This Months #editorschoice

Guppies are a classic example of #parallelevolution but are they really so parallel? An analysis of published #guppy papers by @alexisheckley @AllegraPearce4 @photopidge @ecoevoevoeco @KristaOke
shows low extent of parallelism

http://ow.ly/s8S450LLUG9
#evolution #guppy #guppies #societyjournal