Homosexuality Might Develop in the Womb Due to Epigenetic Changes
According to a newly released hypothesis, homosexuality might not lie in DNA itself. Instead, as an embryo develops, sex-related genes are turned on and off…
According to a newly released hypothesis, homosexuality might not lie in DNA itself. Instead, as an embryo develops, sex-related genes are turned on and off…
A newly published study details the mass extinction of lizards and snakes that occurred after an asteroid struck the Earth 65.5 million years ago, finding…
The “scales” on a crocodile’s cranium aren’t really scales, but simple physical cracks rather than developmentally programmed scales that cover the rest of a crocodile’s…
Bactrian camels have sky-high blood glucose levels, a diet loaded with salt, and tend to pack away fat. These evolutionary adaptations help them survive in…
A new study from Yale University shows that eight beneficial gut bacteria common in honeybees and bumblebees have acquired genes that make them resistant to…
A new study on the development of priapulids, known colloquially as penis worms, throws doubt on a feature that has been thought to define one…
A newly published study analyzes genetic and paleoanthropological evidence, showing that today’s human population is the result of a great demographic and geographic expansion that…
A new study of fossils in New Zealand has discovered that cloning dinosaurs or organisms that have been extinct for millions of years is highly…
Paleontologists have discovered that horseshoe crabs haven’t had an entirely static evolutionary history. A new fossil has helped elucidate the mystery of the horseshoe crabs,…
Pegomastax africanus is a new species of plant-eating dinosaur with tiny, 1-inch-long (2.5-centimeter-long) jaws, which was discovered in South Africa. It thrived during the Lower…
After having put young adults with normal vision through a battery of tests, scientists were able to conclude that females are better at discriminating among…
African spiny mice, specifically the species Acomys kempi and Acomys percivali, have skin that is brittle and can be easily torn. This evolutionary adaptation allows…
The current rising acidity in the ocean is supposed to have dire consequences for organisms like coral, but there are some sea urchins that have…
Chemists are close to showing that DNA could form spontaneously from chemicals which were present during primordial Earth. If they succeed, the work could imply…
J.B.S. Haldane proposed in the 1930s that children might inherit more mutations from their fathers than their mothers. This year, thanks to whole-genome sequencing of…
A newly published study compares the Denisovan genome with those of the Neandertals and eleven modern humans from around the world, finding that modern populations…
Menopause affects humans, pilot whales, and killer whales. These are the only organisms on Earth that stop being able to reproduce long before their lifespan…
Two new studies examined the process is known as Muller’s ratchet, giving a quantitative understanding of the ratchet’s processes and showing why populations my not…