Tier 5

Hedgehog

#Defense#Cuteness#Twist

Fictional character concept

A fictional animal character built around the themes “Defense · Cuteness · Twist”.

Names and keywords describe fictional animal characters. They do not reveal a person's personality, habits, health, destiny or career suitability from their face.

Key Traits

Pointy nose
Small face
Small and cute eyes

Production classifier criteria

These are normalized measurements used by WhatZoo algorithm 1.0. A profile must pass its gate before detail scores are compared.

Required candidate gate

nose-width ratio below 0.13 + chin ratio below 0.15

Detail scoring rules

nose-width ratio below 0.13 · face aspect ratio below 1.3

Passing a gate does not guarantee the result. Up to three detail rules and the scores of other candidates are compared next.

How nearby face types differ

Face type	Required gate
Hedgehog	nose-width ratio below 0.13 + chin ratio below 0.15
Rabbit	mouth-width ratio below 0.36
Fox	chin ratio below 0.15 + eye slant above 1.8

Photo conditions that may change this match

Side shadows and rotation destabilize nose-edge detection. A high or low camera changes the apparent chin ratio. Retest with a neutral, front-facing photo.

These rules classify appearance for entertainment; they do not scientifically diagnose personality or ability.

See the full 478-landmark methodology

❓ Frequently Asked Questions

How is Hedgehog classified?▼

The current WhatZoo candidate requirements are: nose-width ratio below 0.13 + chin ratio below 0.15. Qualifying profiles are compared with other animals by counting matching detail rules. These conditions do not assess personality or ability.

Does Hedgehog imply a personality or suitable career?▼

No. Character keywords are creative settings for fun. This classification cannot determine real personality, sleep habits, dating preferences, work performance or aptitude.

Can the same person get different results?▼

Yes. Pose, expression and lighting can affect measurements, and tied top candidates are resolved randomly. A changed result does not mean a change in personality or ability.

More guides

Reading Animal Tiers: Profile Groups Versus Scores

See current examples of five tiers and how classification, compatibility and group tools use them. Tiers do not assess personality, ability or rarity.

Animal Face Accuracy: Limits of Measurements, Rules and Interpretation

Separate landmark estimates, metric calculations and animal selection, and understand why WhatZoo does not guarantee accuracy or personality predictions.

Animal Face Analysis: From 478 Landmarks to Rule Matching

Understand the seven inputs, required gates, matched-rule counts, detail-only fallback and random selection among tied candidates.

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