This summer, in the introductory course I teach on the evolution and biology of human and animal behavior, I showed my students a website that demonstrates how to identify frog “genders.” I explained that this was a misuse of the term “gender”; what the author meant was how to identify frog sexes. Gender, I told the students, goes far beyond mere sex differences in appearance or behavior. It refers to something complex and abstract that may well be unique to Homo sapiens. ...read more
Humans have language and other animals don’t. That’s obvious, but how it happened is not. Since Darwin’s time, scientists have puzzled over the evolution of language. They can observe the present-day product: People today have the capacity for language, whether it be spoken, signed or written. And they can infer the starting state: The communication systems of other apes suggest abilities present in our shared ancestor.
But the million-dollar question is what happened in betwe ...read more
Even just 30 days in space can significantly reduce our immune system’s ability to fight infection, suggests a new analysis of mice that spent a month aboard an orbiting spacecraft.
The research, which was published December 6 in the journal Federation of American Societies for Experimental Biology, is a recent analysis of data from the Bion-M1 mission, which was a collaborative project carried out by NASA and the Russian Institute of Biomedical Problems in 2013.
Space Mice
As ...read more
Planet Hunting
In a vast cloud of dust and gas 450 light-years from Earth in the Taurus constellation, scientists have found evidence of a treasure trove of super-Earths and Neptune-sized planets.
Using the Atacama Large Millimeter Array (ALMA) in Chile, a team of researchers conducted a study of young stars in a gaseous, star-forming region of Taurus. The team observed and imaged 32 stars in the region that are surrounded by protoplanetary disks — rotating disks of dust and gas that surr ...read more
In a small windowless room on a sweltering summer’s day, I find myself face-to-face with an entomological rock star. I’m at the University of Lincoln in eastern England, inside an insectary, a room lined with tanks and jars containing plastic plants and dozing insects. Before I know it, I’m being introduced to a vibrant-green katydid from Colombia.
“Meet Copiphora gorgonensis,” says Fernando Montealegre-Z, discoverer of this six-legged celebrity. The name’s f ...read more
Author Vishay SinghPosted on Categories Discover Magazine