I'm telling you, guys. Once you get legs, you can have LOADS of fun

Periophthalmus Koelreuteri (natural size) and spreading of the evolutionary propaganda

Image from page 16 of "A Naturalist in North Celebes. A narrative of travels in Minahassa, the Sangir and Talaut Islands, with notices of the fauna, flora and ethnology of the districts visited ... With maps and illustrations" by S. J. Hickson. London: John Murray. 1889