The Spider-Man Lizard Is Real, and It Lives on the Rocks of East Africa

Every so often nature produces something so improbable that it feels borrowed from a comic book.

The Mwanza flat-headed rock agama is one of those things. A scarlet head and shoulders melting into a deep electric blue body, worn by a lizard that spends its days basking on sun-warmed boulders in Tanzania, Rwanda, and Kenya. Look at him once and the nickname explains itself.

We love this creature because he is not trying to blend in. He is trying to be seen.

That color is a male thing, and a mood thing. It flares brightest in breeding season, when the red deepens and the blue turns almost fluorescent, a broadcast aimed at females and at any rival male considering the neighborhood. It is also reversible. After dark, or when something startles him, the whole spectacle drains away into a modest brown, the same brown the females wear year round. The superhero suit, it turns out, comes off.

More improbable creatures: sky puppies, the strange world of domesticated silk moths →

The rest of him is built for the terrain. Flat head, slim body, strong limbs, sharp claws. He can flatten into a crevice in an instant, run up a vertical face of granite, and cover ground on his hind legs when the situation calls for it.

These lizards live in loose social groups on the kopjes, the rounded rock islands that rise out of the East African plains, where a dominant male holds court over a stretch of stone and courts a female with an elaborate sequence of head bobs and swings.

A quick note worth making, because it comes up constantly. This is not the red-headed rock agama, though the two are close cousins and endlessly confused with each other. The Spider-Man one is Agama mwanzae, described in 1923 and named for the Tanzanian city of Mwanza on Lake Victoria. The red-headed rock agama, Agama agama, is a different and far more widespread species that also happens to favor red and blue.

What stays with us is the sheer confidence of the display. In a landscape of dust and ochre and pale grass, evolution produced something that looks lit from within. Most lizards go the other way and put their energy into not being eaten, which produces its own kind of spectacle: tails that drop off and keep wriggling, a gecko that sheds its skin in a predator’s mouth, a horned lizard that shoots blood from its eyes. We collected the strangest of them in The Most Extraordinary Defense Mechanisms in the Animal Kingdom.

Next: Rare footage of the incredible animals we’ve lost →

Photography by @hugo.sykes, @magdalena_manchee, and John Mburu. H/T to Dina V.

Edited by Ben VanderVeen · About Moss & Fog

Our shopObjects we would actually keep.Letterpress prints, patches and pins, The Reading Room, and other things worth living with.Visit the shop→