Paleophysiology: From Fossils to the Future.

Area of Science:

• Paleophysiology
• Evolutionary Biology
• Paleontology

Background:

• Future environments may mirror ancient conditions not seen in millions of years.
• Understanding past life's adaptations is crucial for predicting future organismal responses.
• Paleophysiology offers insights into how ancient organisms coped with their surroundings.

Purpose of the Study:

• To assess adaptive options for organisms evolving in novel future environments.
• To identify and validate reliable proxies for studying paleophysiology.
• To explore the evolution of environmental tolerances and physiological responses.

Main Methods:

• Probing paleophysiology by examining how ancient life coped with past physical and chemical surroundings.
• Developing and verifying quantitative proxies based on fundamental principles.
• Observing proxies in fossil remains and validating them in living species.

Main Results:

• Initial insights have been gained from studies on vertebrates and plants.
• Promising proxies for marine animals are being explored.
• Key questions remain regarding the evolution of tolerances, metabolism, and interspecies interactions.

Conclusions:

• Paleophysiological proxies are essential tools for understanding evolutionary adaptation.
• Further validation of proxies, especially for marine life, is needed.
• Research is critical for predicting how life will perform under future exceptional environmental conditions.