increase body size, inhabit new niches and divide work between different cell types. According to the results of this study, the origin of animals was not, therefore, a compendium of evolutionary innovations at all levels. Rather, it was an evolutionary (or genetic) recycling process that added genomic complexity and allowed […]

unicellular ancestors, according to an article published in the journal Cell , in which Iñaki Ruiz Trillo, professor at the Department of Genetics, Microbiology and Statistics and member of the Biodiversity Research Institute (IRBio) of the University of Barcelona. The work, led by a team from the Institute of Evolutionary […]

based on the genetic code is the lifeblood of all biological systems and it is essential to ensure fidelity” , continues the researcher. A limitation marked by the shape The saturation of the code has its origin in transfer RNAs ( tRNA * ), the molecules that recognize genetic information […]

subsequently statistically evaluate their relationship with the size and trophic habits of the different raptors. . Although more than one of these results lead him to think that Darwin’s Evolutionary Theory is in question, Emily Rayfield, professor at the University of Bristol and leader of the project, affirms that her […]

development programs strictly controlled by genetic networks,” the authors comment. “However, at some point there had to be a multicellular set that originated by following simple physical aggregations that would allow cooperation between cells.” This supposes the existence of a wide range of possible multicellular entities situated between what we […]

its potential benefits. Thus, human activities may be changing the selective forces that for millions of years have been leading to a tendency to increase the size of the brain The appearance of multicellular organisms 600 million years ago remains a great challenge for biologists. Scientists from the Complex Systems […]