In the 150 years since Charles Darwin speculated that humans originated in Africa, the number of species in the human family tree has exploded, but so has the level of dispute concerning early human evolution. Fossil apes...
An international team of researchers led by Griffith University discovered the arrival of ancient humans to uninhabited islands doesn't always lead to widespread extinctions as is often thought. Published in Proceedings of the National Academy...
For all animals, eliminating some cells is a necessary part of embryonic development. Living cells are also naturally sloughed off in mature tissues; for example, the lining of the intestine turns over every few days.
New work from a Stanford University-led team of researchers including Carnegie's Arthur Grossman and Tingting Xiang unravels a longstanding mystery about the relationship between form and function in the genetic material of a diverse group of algae...
Researchers from La Trobe University have made a promising discovery that could pave the way to solving a costly and hazardous problem encountered by wastewater treatment plants the world over. Associate Professor Steve Petrovski,...
One of the evolutionary disadvantages for mammals, relative to other vertebrates like fish and chickens, is the inability to regenerate sensory hair cells. The inner hair cells in our ears are responsible for transforming sound vibrations and...
Over the last 60 years, scientists have been able to observe how and when genetic information was replicated, determining the existence a “replication timing program,” a process that controls when and in what order segments of DNA replicate. However,...
Fentanyl, oxycodone, morphine -- these substances are familiar to many as a source of both pain relief and the cause of a painful epidemic of addiction and death. Scientists have attempted for years to...
A long-awaited, high-tech analysis of the upper body of famed fossil "Little Foot" opens a window to a pivotal period when human ancestors diverged from apes, new USC research shows. Little Foot's shoulder assembly...
It has been known for about a year that minks can become infected with SARS-CoV-2. The virus had been transmitted from humans to farmed mink and mutated in infected animals. Mutations were acquired in the spike protein,...
Handwashing is shaping communities of bacteria that live and grow in the plumbing of domestic sinks, scientists have found. In the largest study of sink bacteria conducted outside of hospitals, scientists at the University...