Fly Agaric vs Humboldt's Squirrel Monkey

Amanita muscaria compared with Saimiri cassiquiarensis

Key Differences

Fly Agaric is Least Concern while Humboldt's Squirrel Monkey is Near Threatened.

Taxonomic Classification

Rank	Fly Agaric	Humboldt's Squirrel Monkey
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Agaricales (Gilled Mushrooms)	Primates (Primates)
Family	Agaricaceae (Agarics)	Cebidae
Genus	Amanita (Amanitas)	Saimiri
Species	Amanita muscaria	Saimiri cassiquiarensis

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

Humboldt's Squirrel Monkey

NT — Near Threatened

Physical Characteristics

Attribute	Fly Agaric	Humboldt's Squirrel Monkey
Diet	Decomposer	—
Average Lifespan	1 years	—
Average Length	20 cm	—
Average Weight	100 g	—

Habitat & Geographic Range

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Humboldt's Squirrel Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Fly Agaric

Among the most iconic and recognizable fungi on Earth, fly agaric mushrooms display striking red caps with white flecked warts across boreal forests of the Northern Hemisphere. Despite their fairy-tale appearance, they contain potent psychoactive compounds including muscimol and ibotenic acid and are moderately toxic. They form critical mycorrhizal symbioses with birch, pine, and spruce trees, exchanging mineral nutrients for carbon and playing essential roles in boreal forest nutrient cycling.