---
title: "1 Internal Clocks Quotes by 1 author"
description: "Browse 1 Internal Clocks quotes by 1 author. Discover the best Internal Clocks sayings and thoughts."
image: "https://sms4smile.com/quotes/i/82c/jessa-gamble-45545_animal_life-evolved-under-conditions-of-light-a_2193567.png"
---

> [Life evolved under conditions of light and darkness, light and then darkness. And so plants and animals developed their own internal clocks so that they would be ready for these changes in light. These are chemical clocks, and they're found…](https://sms4smile.com/quotes/jessa-gamble/life-evolved-under-conditions-of-light-and-darkness-light-and-then/)

[Jessa Gamble](https://sms4smile.com/quotes/author/jessa-gamble/)

[Image](https://sms4smile.com/quotes/i/82c/jessa-gamble-45545_animal_life-evolved-under-conditions-of-light-a_2193567.png)

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