Nautilus is a different kind of science magazine.
They deliver big-picture science by reporting on a single monthly topic from multiple perspectives.
They asked me to illustrate some articles with an unique theme : symmetry.
Issue #13, symmetry.
AD Len Small

1. What Do Animals See in a Mirror? in biology - psychology The mirror test.

2. Stress Gives You Daughters, Sons Make You Liberal. In culture - sociology

3. Math Shall Set You Free—From Envy. In numbers - sociology

4. James Doty’s Helper’s High. In idea — evolution. What is Altruism.