The Origins of Everything

The Evolution of Senses – Perception Comes to Life


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This episode explores how living organisms evolved the ability to perceive their environments through senses. Beginning with simple touch and chemical detection in single-celled organisms, the episode traces the development of complex senses like vision, hearing, and smell. It explains how specialized cells evolved to detect light, sound, vibration, and chemicals, leading to increasingly sophisticated sensory systems in animals. The episode also debunks the myth of “five senses” by introducing lesser-known ones like proprioception, thermoception, and magnetoreception. Ultimately, it shows how the evolution of senses allowed life not just to react, but to interpret and interact with the world — turning existence into experience.

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The Origins of EverythingBy Nathaneal Straker