Anagennimenos

A 110-million-year-old iridescent <n>Ammonite fossil</n>.

A drawing of the <n>Ouroboros</n> symbol.

A macro photograph of the wing of a <n>Caligo memnon</n> butterfly.

An illustration depicting the <n>Phases of the Moon</n>.

Drawing titled <n>Wyrm</n> by artist <n>Niklas Brandt</n> for the <n>Forbidden Lands RPG</n>.

Leaves arranged in a circle depict their life cycle from green to decay.

An illustration of the <n>Ouroboros</n> symbol, depicted as two snakes forming an infinity loop.

The <n>Whirlpool Galaxy</n> with an overlaid <n>Fibonacci spiral</n>. Photo by <n>NASA</n> and <n>ESA</n>.

Arbor Day Foundation on Instagram: "We all know that tree rings can tell a tree's age, but they can tell us SO much more. A tree's light-colored rings represent wood that grew in the spring and early summer, while the dark rings represent wood that grew in the late summer and fall. One light ring + one dark ring = 1️⃣ year of a tree’s life. Rings also give scientists information about that area’s local climate in the past. Tree rings usually grow wider in warm, wet years and they are thinner

Handpoke ☻ on Instagram: “✨✨✨✨✨ . . . . . . #handpoke #handpoked #handpokedtattoo #handpoketattoo #handpokedesigns #stickandpoke #stickandpoketattoo #stickandstyle…”

Signs of the Zodiak, a copper-plate engraving by <n>Smith</n> from circa 1810.