Evolution

by Francesca Tomasi figures by Olivia Foster Rhoades Argonaut. Idéfix. Flamenco. These words invoke movement: the ancient Greek Argonauts were a band of adventurous sailors famous for their epic quests. Meanwhile, Idéfix is the name of an…

Vancomycin-resistant Enterococcus. Photo Credit: Janice Haney Carr Content Providers: CDC. Prior to the discovery of antibiotics, bacterial infections were the leading cause of death worldwide. Now, treating infections is often a routine procedure –…

Scientists may have found an explanation for why the first amphibious fish moved from water to land. On a small island in the South Pacific Ocean, four species of blennies spend half their time in water and half on land. To test whether predation could…

Antibiotics are powerful drugs used to treat bacterial infections. Recently, however, a growing number of bacterial infections have developed resistance to many commonly used antibiotics. In fact, the World Health Organization has pegged antibiotic…

by Tauana Junqueira Cunha If we could travel back in time 540 million years, what would the first animals look like? This is one of the longstanding questions scientists aim to answer in the study of how animals evolved and became distinct from their…

by Patty Rohs figures by Anna Maurer New technology is allowing scientists to investigate natural history museum specimens in ways that we never thought were possible. To the public eye, these museums may seem like an unchanging archive of life on earth.…

by Heather Landry Summary: The vast diversity in gene sequences are what create the large variety of plants and animals we see today. Genetic diversity is crucial for adapting to new environments, as more variation in genes leads to more individuals of…

  Visualization of Earth’s magnetic field [Author: P. Sumanth Naik, distributed under Creative Commons Attribution-Share Alike 3.0 license] Many animals have been known to take advantage of the Earth’s magnetic field, often for migration…

Image from 2009 Hoppenrath et al, distributed under the terms of the Creative Commons Attribution License Take a moment to consider the complexity of the human eye. Now, envision a single-celled organism that also contains this extremely complex and…

All eukaryotes, such as animals and plants, share the same complexity in their cells. Recently, scientists discovered a species of archaea called Lokiarchaeum that may provide a link to the origin of eukaryotic cells. The DNA of this particular microbe…