When early terrestrial animals began moving about on mud and sand 360 million years ago, the powerful tails they used as fish may have been more important than scientists previously realized. That’s one conclusion from a new study of African mudskipper fish and a robot modeled on the animal. Sponsored by the National Science Foundation, the Army Research Office and…
A UCLA-led team of researchers has taken a unique approach to explain the way in which technologies evolve in modern society. Borrowing a technique that biologists might use to study the evolution of plants or animals, the scientists plotted the “births” and “deaths” of every American-made car and truck model from 1896 to 2014. “Cars are exceptionally diverse but also…
New research from an international team of evolutionary biologists, led by the University of Oxford, has used bacteria to show that acquiring duplicate copies of genes can provide a ‘template’ allowing organisms to develop new attributes from redundant copies of existing genes. The researchers allowed 380 populations of Pseudomonas aeruginosa bacteria to evolve novel metabolic traits such as the ability…
Loyola University Chicago researchers are among the co-authors of a groundbreaking study that found humans have a higher metabolism rate than closely related primates, which enabled humans to evolve larger brains. The study, published in the journal Nature, found that humans also have a higher percentage of body fat, providing the energy reserves to fuel their faster metabolism. The findings…
New research published today in PLOS ONE reveals an improved annotation of microRNAs in the dog genome to further understand its biological role. Providing a platform for future studies into biomedicine, evolution and the domestication of important animals including dogs, cows, horses and pigs. This discovery provides a significant opportunity not only to enhance our understanding of how miRNAs regulate…
Evolution is thought to proceed through the gradual accumulation of independent mutations in each new generation. In a study published online today in Genome Research, researchers analyzing hominid genomes have discovered thousands of clustered mutations likely resulting from the coordinated activity of APOBEC enzymes, leading to accelerated changes in DNA. Mutations occur through a variety of mechanisms, including mutagenic agents…