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Biology: Welcome

How to Use This Guide

Welcome to the Biology Research Guide. This guide has been created especially for you to help you conduct research for your assignments. Click on each tab to find information, tutorials, and even sample papers to give you an idea of how your finished work should look. Stop by the library or email us if you have any questions. We're always happy to help!

Your Life on Earth

Your life on earth



The Tree of Life

World's Largest Tree Of Life Visualizes 50,000 Species Across Time

"Temple University researchers recently put together the world's largest tree of life visualized across time. The family tree of living and extinct organisms encompasses 50,000 species—only a fraction of the world's history of life—and would easily take up hundreds of pages if laid out linearly. To fit their work onto a printed page, the researchers, led by evolutionary biologist S. Blair Hedges, instead decided to visualize the data as a spiral."