Scientists have discovered a bizarre new species of marine worm that lacks a number of internal features common to other animals — including an anus.
Evolution is among the most substantiated concepts in science and is the unifying theory of biological science. Charles Darwin co-originated, with Alfred Russel Wallace, the theory of evolution by natural selection. His masterwork, the 1859 "Origin of Species," offered ample evidence for evolution having occurred, as well as the first strong explanation for its mechanism, natural selection. Modern evolutionary theory incorporates these concepts: species change over time; genetic mutations are responsible for the changes; individuals with beneficial genetic mutations will survive preferentially compared with their competitors, in a process known as natural selection; those successful individuals' more numerous offspring will spread the beneficial genetic constructs throughout the population; when enough genetic changes reproductively isolate a population, that population has become a new species. Here you'll find news and information on evolution and the battle with proponents of so-called creation science.
A new dinosaur family tree floated earlier this year isn't quite right, and the old tree, which researchers have accepted as canon for 130 years, isn't much better, a new study finds.
Growing old is a natural part of life, but that hasn't stopped people from turning to anti-aging skin treatments, specialized diets and other tricks to try to reverse the effects of aging.
Neanderthal DNA could influence your skin tone, hair color, sleep patterns, mood and even smoking behavior, a new study finds.
The newly sequenced genome of a female Neanderthal is revealing that our relatives may have passed on genes that today are linked to cholesterol levels, arthritis and other diseases.
The ancestors of modern humans may have gotten genital herpes from the extinct relative of humanity commonly known as Nutcracker Man, a new study suggests.
X-ray scanners and high-speed video captured views of trap-jaw ants' jaws in action — inside and out.
Humans first journeyed into space in 1961, but even half a century later, questions remain about how spaceflight affects the human body.
The most complete extinct-ape skull ever found reveals what the last common ancestor of all living apes and humans might have looked like, according to a new study.
A Cretaceous mantis fossil is helping scientists piece together how these insects evolved their prey-nabbing adaptations.