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Neanderthal and Homo Sapien DNA: What does it indicate?

Past posts have described the science of evolution, and the development on Earth over time of its atmosphere and of various life forms. Prior posts have also noted that science is a constantly changing picture as new data and information are developed. Speaking of recent developments, research now appears...

The foundations of life may have formed in cold environments, not hot or temperant

The scientific debate over the origins of life have found support for molecular formation and replication in boiling hot deep-sea hydrothermal vents and volcanic hot springs, as well as the warm little ponds postulated by Darwin. Now comes evidence for the other end of the temperature spectrum, the very...

The Columbian and Woolly Mammoth may be one highly variable species

What is interesting about genetic analysis is the way it has the potential to upset otherwise well-established classifications of animals. A good example is the Mammoth, Ice Age beasts well known to one and all. Although they both roamed North America a millennia ago, accepted taxonomy had classified...

Evolutionary Change Is Just That, Change, and Change Often Is a Mixed Bag and More Complex Than Anticipated

There is an unfortunate tendency to conceive of evolutionary change as causing an adaption to a selection factor that marks an improvement in addressing the environment in which the selection factor exists. Were it only so simple. Change may be an improvement, but sometimes it brings unfortunate baggage...

Do comb jellies indicate that evolutionary theory needs a serious rethink? Maybe instead they are a door to understanding the evolution of complexity

When viewing evolution over time, scientists generally favor parsimony, that is, lineages radiating from a common ancestor share most of the ancestor's features. This also means that animals at the bottom have simple features, which may grow more complex or which may become more specialized as other...