Rapid Evolution, Rapid Extinction and the Influence of Man

Versión en español aquí A popular myth relates “evolution” with strictly long time periods, thousands or millions of years. This is understandable given that the most popular examples (dinosaurs – birds, Australopithecus – Homo sapiens) are those in which big changes needed a lot of time to “transform” a living being into a totally different…

Phymaturus: Lizards running on ash

Cover image by flickr user Javier Orellana Versión en español aquí! After many months, the last of the tropidurines has arrived. Phymaturus is a very particular genus of lizards and stands out of the rest of the genera in Tropidurinae because of its particular morphology, adapted to a life in rocky micro-habitats. In general, the…

A story of passion and audacity

Cover Illustration by Craig Latker Versión en español aquí! “Letters to a young scientist” is a small book that I really enjoyed reading. However, there is a special chapter to which I always return. I might have re-read it about 10 or more times. Even though I recommend the entire book (on it the recognized…

Another adaptation story in Tropidurus

Cover photo: Tropidurus hispidus, by Fernando Flores available under a Creative Commons Attribution-Noncommercial license   Spanish version here! Almost since the beginning of this series it was already decided that Tropidurus would be left until the end. The reason is that I personally don’t know much about this genus. Additionally the species of the genus…

What can proportions tell us?

Versión en español aquí! Using the same data of my Tropidurinae lizards project I decided to do a quick experiment. Just wanted to visibly represent the differences in the morphological proportions of the genera within the Tropidurinae clade. In the original project I measured 15 morphological traits from museum specimens of 10 genera within the…