Fossils, genes and the evolution of animal limbs

Article Abstract:

An analysis of the origin and evolution of vertebrate limbs and digits, arthropod legs and insect wings based on paleontological evidence and developmental genetics is presented. An integration of the paleontological and developmental evidence suggest that vertebrate, arthropod and winged insect appendages have generally been derived from similar, pre-existing, genetic regulatory systems that may have resulted from a common ancestor.

Cover Story, Genetic aspects, Extremities (Anatomy)

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Insignificance

Article Abstract:

Dark energy is smoothly distributed throughout space and is constant through time. The existence of dark matter and dark energy is indirectly inferred through the influence of their gravitational fields on the ordinary matter.

Science & research, Influence, Space exploration, Gravity, Gravity (Force), Dark energy

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Chance and necessity: the evolution of morphological complexity and diversity

Article Abstract:

Research is presented describing the study of evolution and the major changes which lead to the formation of intelligent life on Earth.

Life on other planets, Extraterrestrial life, Morphology (Biology), Life, Origin, Morphology, Origin of life

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