Foraminifera are very beautiful tiny sea creatures that live in all our oceans and they're so small that you need a microscope to see them. So, foraminifera might be tiny, but they play a very big role in our oceans. They react very sensitively to physical and chemical environmental changes, making them excellent indicators for scientists studying Earth's climate history. By analyzing the DNA found in foraminifera shells, researchers can unlock information about sea levels, temperatures, and ocean conditions of the Earth millions of years ago.. This book delves into the world of foraminifera, exploring their habitats, reproduction, significance to climate science, and the challenges they face of climate change today. It explains why these remarkable creatures are crucial to our understanding of Earth's past and future climate and our oceans.