General Biology II · Module 12 · Animal diversity

Animal Diversity Walkthrough

Watch embryos fold into germ layers, body cavities open, sponges pump water, stinging cells fire and limbs grow from fins, while the animal family tree lights up beside them. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · General Biology II Study Tools · Drawings are simplified and not to scale. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Development and movement are shown much faster than real life, and trees are simplified working hypotheses. Practise next in the Animal Diversity Lab.