Placental pregnancy is a radical phenotype which arose only once in evolutionary history. Professor Günter Wagner and colleagues have conducted genome-wide analysis on cells from an array of pregnant animals to reveal that ancient transposable elements were the likely vehicles for the origin of this mammalian trait.
Tag "Evolutionary Biology"
Genomic analysis of finch species from the Galapagos archipelago and Cocos islands reveals a genetic basis for the beak diversity studied by the father of evolution.
Turning over is neither easy nor trivial for a belly-up tortoise — lying flipped over on its shell makes the reptile vulnerable to predation, among other hazards. According to a new study conducted at the University of Belgrade, certain types of tortoises may have an advantage in this situation depending on the geometry and size of their shells. In addition, researchers have investigated the evolutionary trade-offs of these ideal shell shapes.
Recently, a team of 146 scientists unraveled the genome of the tsetse fly, the vector of a lethal disease called sleeping sickness. With this new genetic information, many scientists have proposed innovative solutions to protect the 70 million people in sub-Saharan Africa who are affected by this disease.
A Yale-led group discovers and characterizes an ancient carnivorous crustaceous using high-tech methods.
Recently, the Nonhuman Rights Project fought for legal personhood for a 26 year-old chimpanzee named Tommy. The case relates to current research on primate genetics, cognition, and emotion.
Professor Walter Jetz recently received a boost in NSF funding for projects integrating the global distribution of species with their placement on the tree of life.
Many of nature’s most brilliant colors arise not from pigments, but from curious tricks of light. From the brilliant blue of a morpho butterfly to a beetle’s iridescent emerald, structural colors continue to mystify physicists and biologists. A recently unearthed beetle fossil sheds light on the evolution of these spectacular colors.
New fossil remains of prehistoric reptiles shine light on the dark coloration of their skin. These distinct pigmentations may have played key ecological roles in these distantly related animals.
Historians have recorded numerous Viking invasions in medieval Europe, but are the Vikings simply savage barbarians? Using statistical mechanical tools to analyze ancient texts, scientists have discovered that Vikings formed complex social networks.