The genome of humans and other complex animals contains essential “foreign” segments of genetic code, new study says. The research, which cast doubt on the theory that evolution is exclusively a process of selection through ancestry, was published on Friday in the journal Genome Biology. Initially, it was thought that complex animals’ genes were solely inherited through parents, but the... 

Researchers studied the rocky soil samples from the volcanoes in the Atacama region in South American that have conditions similar to Mars. A team of researchers at the University of Colorado Boulder has found a type of organism that can survive the most inhospitable conditions on Earth. “We haven’t formally identified or characterized the species. But these are very different than anything...