Excited to share a new study co-written with Ed Ricemeyer (LMU Munich), supervised by Manfred Schartl (U. of Würzburg) & Wes Warren (U. of Missouri). We investigated how the Amazon molly has survived for 100,000 years (more generations) despite clonal reproduction. www.nature.com/articles/s41...

Gene conversion empowers natural selection in a clonal fish species - Nature

Analysis of the asexually reproducing Amazon molly Poecilia formosa and its sexually reproducing progenitors Poecilia mexicana and Poecilia latipinna reveals that it maintains a divergent mutational l...

nature.com

This fish shouldn’t exist — the weird genetics of clonal vertebrates idp.nature.com/authorize?re... 🧪🌎🦑🐠

This fish shouldn’t exist — the weird genetics of clonal vertebrates

Hear the biggest stories from the world of science | 11 March 2026

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Asexual Amazon mollies differ morphologically from their sexual hosts, resembling P. mexicana when coexisting with P. latipinna hosts, and vice versa! royalsocietypublishing.org/doi/10.1098/...

Our new paper in ProcB (doi.org/10.1098/rspb...) reveals that wild Amazon mollies develop host-specific shapes based on their sexual hosts. This exciting (and unexpected) finding sheds light on co-evolution dynamics in asexual-sexual systems. Looking forward to investigating this further!

It is time to officially move to Bluesky. I’m Waldir Miron, an Assistant Professor at the University of West Florida. My lab focuses on molecular and integrative biology to explore evolutionary questions, with a particular interest in reproductive biology variation and its connection to evolution.