Is the outcome of evolution predictable?
If one would rewind the tape of life, would evolution result in the same outcome? The Harvard evolutionary biologist Stephen Jay Gould came up with this famous thought experiment. He suggested that evolution would not repeat ...
Primitive microbes stole bacterial genes on a surprising scale
A University of Otago researcher is part of an international team that has discovered that horizontal gene transfer (HGT) played a surprisingly large role in the evolution of primitive microbes known as archaea.
Slow-growing galaxies offer window to early universe
What makes one rose bush blossom with flowers, while another remains barren? Astronomers ask a similar question of galaxies, wondering how some flourish with star formation and others barely bloom.
New clues behind the resilience of a leading sexually transmitted pathogen, Chlamydia
In the advanced online edition of Molecular Biology and Evolution, authors Domman, et al. have explored factors behind the resilience of the most common sexually transmitted disease in the U.S., chlamydia, with an estima ...
The cichlids' egg-spots: How evolution creates new characteristics
The evolution of new traits with novel functions has always posed a challenge to evolutionary biology. Studying the color markings of cichlid fish, Swiss scientists were now able to show what triggered these ...
Treasure trove of ancient genomes helps recalibrate the human evolutionary clock
Just like adjusting a watch, the key to accurately telling evolutionary time is based upon periodically calibrating against a gold standard.
Video: How did life on Earth begin?
It's one of the most profound questions of all—how did life on Earth begin?
Microbes evolve faster than ocean can disperse them
Two Northeastern University researchers and their international colleagues have created an advanced model aimed at exploring the role of neutral evolution in the biogeographic distribution of ocean microbes.
Study ties groundwater to human evolution
Our ancient ancestors' ability to move around and find new sources of groundwater during extremely dry periods in Africa millions of years ago may have been key to their survival and the evolution of the human ...
ASU astrophysicists to probe how early universe made chemical elements
In the beginning, all was hydrogen – and helium, plus a bit of lithium. Three elements in all. Today's universe, however, has nearly a hundred naturally occurring elements, with thousands of variants (isotopes), ...
Study shows tolerance and cooperative ties between male Guinea baboons
Contests, threats, or ignoring one another: The relationships between male mammals are usually described in this or a similar way. The situation is quite different in humans where strong partnerships and ...
Danish museum discovers unique gift from Charles Darwin
The Natural History Museum of Denmark recently discovered a unique gift from one of the greatest-ever scientists. In 1854, Charles Darwin – father of the theory of evolution – sent a gift to his Danish ...
How yeast formations got started
Researchers conducted a comparative analysis of nearly 60 fungal genomes to determine the genetic traits that enabled the convergent evolution of yeasts.
UMSL scholar examines evolution of learning
Why do monkeys learn to be afraid of snakes and not flowers? Is this knowledge the result of evolution by natural selection? Did the monkeys that couldn't learn that association quickly die and not reproduce?