Research by Gustavo Caetano-Anollés and Fayez Aziz, University of Illinois, reveals a “big bang” during evolution of protein subunits known as domains. The team looked for protein relationships and domain recruitment into proteins over 3.8 billion years across all taxonomic units. Their results could have implications for vaccine development and disease management. Credit: Fred...
A Naupactus cervinus weevil, a common, yet invasive species in many parts of the world, is seen eating a leaf. Credit: Courtesy of Analia Lanteri/Facultad de Ciencias Naturales y Museo de La Plata, ArgentinaResearch from Wellesley University reveals that despite being a clonal insect variety, weevils utilize genetics policy to adjust to brand-new food...
The aerial scene depicts two Late Devonian early tetrapods – Ichthyostega and Acanthostega – coming out of the water to move on land. Footprints trail behind the animals to show a sense of movement. Credit: Davide BonadonnaOne of the most critical questions in evolution is how and when significant groups of animals first evolved....
There are significant differences in species numbers among the major branches of the tree of life. Some groups of organisms have numerous species, while others have some. For example, animals, plants, and fungi each have more than 100,000 known species, how most of the others-- such as many algal and bacterial groups-- have 10,000...
Remains of Linya, recovered in Cova Gran site. Credit: CEPAAt the Cova Gran de Santa Linya site (La Noguera, Lleida), the remains of a female attributed to H. sapiens were discovered by scientists of the Centro Nacional de Investigación Sobre la Evolución Humana (CENIEH). The carbon-14 record of the sediments in the natural vessel...
