The cool thing about people who are curious about the universe (my favorite kind of human) is that they all express their curiosity in different ways. Some spend their lives doing monotonous experiments in laboratories (bless them), some make nature shows, some teach, and some write science fiction. Others stomp around in awesome “hello-I’m-a-naturalist-adventurer” boots and create psychedelic, scientifically accurate observational drawings.

Ernst Haeckel is the chap on the left, hanging out with the intense, bearded butterfly-catcher.He was a German biologist, and he made these epic illustrations between 1899 and 1904, and it’s his birthday today.

Happy birthday, Ernst. Respect.