Image of spikes of purple flowers

Purple loosestrife • Photo by Garten Akademie (CC BY 3.0)

Image of silhouetted figures mimicking the traditional view of human evolution as progress from crouched to upright

Photo by Johannes Plenio on Unsplash

Image of a murmuration of starlings in flight

An example of decentralized self-organization in nature • Photo by Donald Macauley (CC BY-SA 2.0)

Image of statue of Charles Darwin

Statue honoring Charles Darwin at the Natural History Museum, London • Photo by Hulki Okan Tabak on Unsplash

Image of a brown ground finch standing on a wooden rail

A Galápagos finch • Photo by Paul Krawczuk (CC BY 2.0)

Closeup image of a human eye

Photo by Daniil Kuželev on Unsplash

Illustration of bacterium

Staphylococcus bacteria • Image by Scientific Animations (CC BY-SA 4.0)

Image of man riding a unicycle

One method of getting around • Photo by Steve (CC BY 2.0)

Image of Tenniel's dodo illustration with modern reconstruction

John Tenniel's classic illustration of Alice and the Dodo, along with a modern reconstruction • Photo by BazzaDaRambler (CC BY 2.0)

Image of dragonfly perched on reed near pond

Photo by Deva Darshan on Unsplash