Researchers led by Harvard University and The Rockefeller University combine phylogenetic reconstructions and computational behavioral analysis to show that army ant mass raiding evolved from group raiding through the scaling effects of increasing colony size. The transition evolved tens of millions of years ago and is perfectly correlated with a massive increase in colony size.
Researchers created an algorithm to identify similar cell types from species -- including fish, mice, flatworms and sponges -- that have diverged for hundreds of millions of years, which could help fill in gaps in our understanding of evolution.
Researchers from University of Copenhagen have investigated what happened to a specific kind of plasma - the first matter ever to be present - during the first microsecond of Big Bang. Their findings provide a piece of the puzzle to the evolution of the universe, as we know it today.
Researchers from the University of Tsukuba have identified a new type of carbonic anhydrase enzyme that can convert CO2 to HCO3- without the use of a metal ion. This discovery not only increases our understanding of how this essential family of enzymes work, but could also be applied to artificial synthesis to help generate renewable energy sources in the future.
The Paleocene-Eocene Thermal Maximum, or PETM, was a short interval of highly elevated global temperatures 56 million years ago that is frequently described as the best ancient analog for present-day climate warming.
A team of evolutionary biologists including faculty at Binghamton University, State University of New York have shown that some Anolis lizards, or anoles, have adapted to rebreathe exhaled air underwater using a bubble clinging to their snouts.
A lot happens and changes within a thin one-meter-thick transition layer between deep Red Sea water and an expansive underlying brine lake.
The thunder of a mountain river or the crash of pounding surf have likely been changing how animals communicate and where they live for eons. A new experimental study published in the journal Nature Communications finds that birds and bats often avoid habitat swamped with loud whitewater river noise.
Clownfish are instantly recognizable by their white stripes, which appear as they mature from larvae into adults. But how these distinctive patterns form has long remained a mystery. Now, a new study has found that the speed at which these white bars form depends on the species of sea anemone in which the clownfish live. The scientists also discovered that thyroid hormones, which play a key role in metamorphosis, drive how quickly their stripes appear.
Using DNA from greenhouse-grown plants representing all species and hundreds of varieties of watermelon, scientists discovered that watermelons most likely came from wild crop progenitors in northeast Africa. The study corrects a 90-year-old mistake that had previously tied watermelons to South Africa. The genetic research is consistent with newly interpreted Egyptian tomb paintings that suggest the watermelon may have been consumed in the Nile Valley as a dessert more than 4,000 years ago.