Category Archives: Evolution
Early research on the origin of life. The Miller experiment.
“It is often said that all the conditions for the first production of a living organism are now present, which could ever have been present.— But if (& oh what a big if) we could conceive in some warm […]
A new theory on the early building blocks of life
From nucleic acids to proteins and sugar chains, all life is made up of polymers, large molecules made up of sequences of small units called monomers. However, how these macromolecules first appeared on the surface of Earth is still controversial. […]
Between science and fascination: An interview with Dr. Nancy Segal
How does the Zika virus cause microcephaly? Why do some people develop schizophrenia or mental disease while others don’t? Is our sexual orientation hardwired in our genes? As seemingly unrelated as these questions might sound, they can all be addressed […]
Where have all the megasharks gone?
We’ve known for decades there was a time when mammoths, saber-tooth cats, and other big mammals walked the Earth like it was no big deal. We also know that at some point of the Ice Age, a mass extinction made […]
Blonds and Blondes
Pigmentations are among the clearest examples of phenotypic variation in many species. Hair, skin and eye colors are highly heritable and visible traits in humans. Blond hair is most commonly found in Northern and Central Europeans and their descendants. Nowadays […]
How universal is music language?
Music is usually considered as a universal art form. It is found in virtually all human cultures and its use is associated with many different human tasks, from the most sacred to the most profane. Its elusive nature has haunted […]
Evolution: A Palaeolithic back migration to Africa
Authors:
M. Hervella & C. de la Rúa do research and teach at the Genetics, Physical Anthropology and Animal Physiology Department of the University of the Basque Country (UPV/EHU).
After the dispersal Out of Africa of modern humans, around […]
Murcian trailblazers
A 1 million-year-old fire lit by human ancestors was discovered in 2012 in the Wonderwerk Cave in South Africa. The soil of the cave yielded several dozen stone tools, microscopic plant ashes and burned bone bits. It is supposed that […]
Right on the nose
The nose is one of the strangest structures of human anatomy. It is much more different from our closest relatives than other parts of the body, it is sexually dimorphic, being on average larger in males than in females, and […]
Lost Y chromosome
Neanderthals (Homo neanderthalensis) were a species –some say a subspecies although most authors consider there is enough evidence to consider them as a separate species– of human closely related to us. They were firstly discovered in a cave […]