Radiation dating fossils

6854933580_2c8b688306_z

This animation created for Evolution: "Great Transformations" depicts creatures whose fossils were found at the Burgess Shale.

As alien as these creatures seem, they are also surprisingly familiar.

- Human Evolution Timeline Hominid Clade Tree showing an example of uncertainty of arrangement. Unfortunately, it is scattered among many sources, some of the best of which -- science journals -- require costly subscriptions to read.

So there is debate within paleoanthropology about the matter -- healthy debate that requires more evidence before consensus is reached on all points.

— Researchers have made the first detailed map of the regions into which the brain of one of the most closely-related organisms to the vertebrates is divided and which could give us an idea of what our ...

— Paleontologists have uncovered a new fossil species that sheds light on the origin of mandibulates, the most abundant and diverse group of organisms on Earth, to which belong familiar animals such as ...

Also used to describe the process of genetic change within a population, as influenced by natural selection.

adaptive landscape: A graph of the average fitness of a population in relation to the frequencies of genotypes in it.

The term can also be applied to larger groups of organisms, as in "the adaptive radiation of mammals." adaptive strategies: A mode of coping with competition or environmental conditions on an evolutionary time scale.

You must have an account to comment. Please register or login here!