The Explorer's Guide to Biology
There is great beauty in living organisms and in the curiosity-driven quest to understand them. The mission of The Explorer’s Guide to Biology (XBio) is to create a free learning resource that emphasizes the wonders of life and the problem-solving nature of science.

Hardy Weinberg Equilibrium

The Most Beautiful Experiment: Meselson and Stahl

The Explorer's Guide To Biology Instructional Video

Neurobiology

How to Design a Good Experiment

Noah Green Biography

The Neuron

How Neurons Communicate

What is a Microbiome?

What is Evolution?

Heredity Part 1: Genes and Traits

Mike Walter Biography

Heredity Part 2: Pedigrees and Evolution

Model Organisms

Elie Maksoud Biography

What Is Your Metabolism?

What is Homeostasis?

Jay Labov Biography

Homeostasis

Discovering GDP-GTP Exchange and Signal Amplification in Rod Outer Segments

Discovering Transducin and It's Function in the Visual Transduction Pathway

The Importance of Studying the Visual Transduction Pathway

The Connection Between Structure and Function in Biology

Hypothesis Driven Research

Helene Engler Biography

Liqun Luo Biography

Sensory Systems

David Austin Biography

The Importance of the Field of Neuroscience

What is Gene Regulation?