Researchers here report on a cheaper implementation of encapsulation for transplanted stem cells, preventing the recipient's immune system from attacking cells originating from a different individual or even different species. SinceShow More Summary
The beautiful sound of birdsongs emerging from the trees is a wonderful example of how much nature can still teach us, even as much about their origins are still mysterious to us. About 40 percent of bird species learn to vocalize when they are exposed to a tutor, a behavior of interest to many neurologists and neurobiologists. Show More Summary
"A little over a decade after he published “On the Origin of Species,” in which he described his theory of natural selection shaped by “survival of the fittest,” Darwin published another troublesome treatise — “The Descent of Man, and Selection in Relationship to Sex.” This expanded on an idea he mentioned only briefly in “Origin.” […]
This story was originally published by Food and Environment Reporting Network. Salvatore Ceccarelli knew he was engaging in a subversive act when, in 2010, he took two 20 kilo sacks of bread and durum wheat seeds from a seed bank outside of Aleppo, Syria and brought them to Italy during a visit back to his […]
Modern ray-finned fishes (Actinopterygii) comprise half of extant vertebrate species and are widely thought to have originated before or near the end of the Middle Devonian epoch (around 385?million years ago). Polypterids (bichirs and...Show More Summary
Let me get this out of the way before we go any further: I do not think Xenomorphs need a cinematic origin story. The fact they are presented as a mysterious species without any logical motivation in the original 1979 film Alien and its sequels make them some of the scariest monsters ever to grace […]
A 13-million-year-old skull found in Kenya provides the best evidence yet for the African origins of the ancient species that gave rise to all living apes
Excerpt: From Robert Wright’s Why Buddhism Is True: The Science and Philosophy of Meditation and Enlightenment. (WSJ)
This story was originally published by HuffPost and appears here as part of the Climate Desk collaboration. A federal appeals court chose on Tuesday to keep in place Endangered Species Act protections for gray wolves in the western Great Lakes region — a decision that could also have implications for Yellowstone grizzly bears and other wildlife. The U.S. Court of […]
"With the possible exception of Asa Gray, no American read the Origin of Species with as much care and insight as Henry David Thoreau.... That the struggle among species was an engine of creation struck him with particular force. It undermined transcendentalist assumptions about the essential goodness of nature, but it also corroborated many […]
(McMaster University) New biological information gleaned from the red vizcacha rat, a native species of Argentina, demonstrates how genomes can rapidly change in size.Researchers from McMaster University set out to study this particular species because its genome, or its complete set of DNA, is the largest of all mammals, and appears to have increased in size very rapidly.
New biological information gleaned from the red vizcacha rat, a native species of Argentina, demonstrates how genomes can rapidly change in size.
(University of Turku) Throughout the history of life, new groups of species have flourished at the expense of earlier ones and global biodiversity has varied dramatically over geologic time. A new study led by the University of Turku, Finland, shows that completely different factors regulate the rise and fall of species.
(University of California - Berkeley) Based on earlier studies, biologists believed that the vast majority of today's frogs originated in a blossoming of new species 100 million years ago. New and more complete genetic data pinpoints...Show More Summary
This article was originally published on The Conversation. Read the original article. Of all the species that have ever lived, more than 99 percent are now extinct. Most of them quietly disappeared during periods of “background extinction,” whereby a handful of species become extinct every 100,000...
Join the forces of the Ato as they set off on a journey across the universe to save their planet from a slow death. Find out how far one species is willing to go to save itself in this gorgeous hand drawn action adventure from Bonfire...Show More Summary
Since its first incarnation, Star Trek has been about multiculturalism, with characters of different species living and working together on the Starship Enterprise. The original series featured a diverse cast and even included the first interracial kiss ever shown on TV. Show More Summary
The News & Views article 'Palaeoanthropology: On the origin of our species' by Chris Stringer and Julia Galway-Witham (Nature546, 212–214; 2017) stated that at least five individuals were identified from human fossils uncovered in excavations reported by Hublin
(Louisiana State University) Biologists have always been fascinated by the diversity and changeability of life on Earth and have attempted to answer a fundamental question: How do new species originate?A new study provides the first large-scale test of the link between population differentiation rates and speciation rates. Show More Summary
The findings may push back the origin of our species by more than 100,000 years and challenge leading ideas about where and how our lineage evolved. Continue reading ? The post Ancient fossils from Morocco mess up modern human origins appeared first on PBS NewsHour.