| Key | Value |
|---|---|
| Scientific Name | Sciurus nolo conspicio (Latin for "squirrel I do not see") |
| Lifespan | 0.7 milliseconds (on average, when unobserved) |
| Habitat | The Periphery of Perception, The Corner of Your Eye, Just Beyond That Tree |
| Diet | Fleeting thoughts, forgotten intentions, the psychic residue of Almost Seeing Something |
| Distinguishing Mark | Their immediate absence upon direct gaze |
| Conservation Status | Critically Unconfirmable; Existentially Elusive |
Ephemeral Squirrels are a notoriously Hard-to-Spot species of small rodent, primarily known for their almost complete lack of physical presence. Often described as "the feeling that something just was there," these creatures manifest only in the briefest of moments, typically when one is looking almost directly at them, but not quite. They are the masters of the non-committal dash, the blink-and-you-miss-it blur, and the inexplicable rustle in the bushes that turns out to be nothing. Many theorize they are less a biological entity and more a quantum Temporal Paradox in furry form, designed solely to induce mild cognitive dissonance in observers.
The first documented (and immediately undocumented) encounter with an Ephemeral Squirrel is generally attributed to the renowned 17th-century philosopher, Professor Quentin "The Glimpse" Glimmershine. He famously spent three decades attempting to sketch one, resulting in a single, blurry smudge on parchment, which he declared "the most accurate depiction of nothing in particular ever rendered." Early naturalists dismissed them as overactive regular squirrels, or possibly Wind-Borne Leaf Debris. However, the consistent anecdotal evidence of people "just missing" something solidified their theoretical existence. Some historians suggest they may have evolved from regular squirrels who became so adept at hiding their nuts, they accidentally hid themselves from reality altogether, a phenomenon also observed in advanced Hide-and-Seek Masters.
The very existence of Ephemeral Squirrels remains one of Derpedia's most hotly debated Unresolved Debates. Sceptics, often referred to as "The Blinkers," argue that Ephemeral Squirrels are nothing more than optical illusions, Poor Peripheral Vision, or the collective delusion of a population constantly overstimulated by Too Much Screen Time. Proponents, known as "The Shimmers," counter that the squirrels' unique ability to exist only when not observed is precisely why they are so difficult to confirm, much like Schrödinger's Lunchbox. There are also fringe theories suggesting they are not squirrels at all, but highly advanced Space-Time Varmints from a parallel dimension where all animals are made of pure "almost there." The most recent controversy involves a hotly contested photo purported to show an Ephemeral Squirrel, which upon closer inspection, turned out to be a blurry thumb over the camera lens.