Arthropleura

When life finally crawled from the sea onto land, it did not arrive quietly.

Arthropleura dragged its segmented body through the first forests of fern

and scale-tree — longer than a grown man, wider than a shield, encased in

plates of chitin that clicked and scraped against the undergrowth like armor

being dragged across stone. It had no venom. It had no great speed. It had

no jaws built for killing. It simply did not need them. In an age when the

air itself was thicker and richer with oxygen, when the rules of size had

not yet been written for land-dwellers, Arthropleura grew beyond every limit

that would later be imposed on creatures without bones. It was the land's

first giant — proof that the earth, like the ocean before it, would not be

content with small things. The clicking of its legs through the primordial

forest was the sound of a world waking up to what it could become.