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Information on controversies in the public arena relating to evolutionĪ vestigial structure is a feature that a species inherited from an ancestor but that is now less elaborate and functional than in the ancestor.

Alignment with the Next Generation Science Standards.

The big issues – Pacing, diversity, complexity, and trends.

Macroevolution – Evolution above the species level.

Microevolution – Evolution within a population.

Mechanisms: the processes of evolution – Selection, mutation, migration, and more.

The history of life: looking at the patterns – Change over time and shared ancestors.

An introduction to evolution: what is evolution and how does it work?.

This is a textbook example of assumption passing as fact. The caption under the figure says that the pelvic bones “show structural change over time.” A bone itself cannot show structural change-that change must be inferred from the assumed ancestors and assumed ancestral function. Even though it has a clear reproductive function, evolutionists call it a left-over from a time when whales walked on land. The figure on the left shows the supposed vestigial pelvis of a whale. But using observational science, it is impossible to identify exact ancestors or even the exact function of structures because observational science deals only with things that are observable in the present. This teaching is based on an assumption that is then passed off as science, an assumption that the ancestry and function of the structure is known. (Click to enlarge)Īlmost every secular biology textbook today includes a section on vestigial structures-structures that are supposed remnants from ancestors that have lost their original function or capacity. Biology: The Dynamics of Life, New York, McGraw-Hill, p.