Smallest Animals
The smallest animals in our catalog, ranked by maximum weight.

Honeybee
Apis mellifera
InsectThe honeybee is a highly social insect essential to global agriculture, pollinating a huge share of the crops humans depend on while producing honey and wax.

Monarch Butterfly
Danaus plexippus
InsectThe monarch butterfly is famous for an extraordinary multi-generational migration spanning thousands of kilometers between Canada, the United States, and central Mexico.

Golden Poison Frog
Phyllobates terribilis
AmphibianThe golden poison frog is widely regarded as the most toxic animal on Earth by weight, native to a small stretch of Colombian rainforest.

Common Vampire Bat
Desmodus rotundus
MammalThe common vampire bat is one of only three bat species that feeds exclusively on blood, mainly targeting livestock across Latin America under cover of darkness.

Common Quail
Coturnix coturnix
BirdThe common quail is a small, secretive ground-dwelling bird that migrates annually between Europe, Africa, and Asia, more often heard than seen in dense grassland.

Clownfish
Amphiprion ocellaris
FishThe clownfish is a small, brightly-colored reef fish famous for its symbiotic relationship with sea anemones, whose stinging tentacles it is immune to.

Moon Jellyfish
Aurelia aurita
Marine AnimalThe moon jellyfish is one of the most common and widely-distributed jellyfish species, drifting through coastal waters worldwide in large seasonal blooms.

Xerus (African Ground Squirrel)
Xerus inauris
MammalThe Cape ground squirrel, or xerus, is a burrowing rodent of southern Africa's arid plains, easily recognized by holding its bushy tail overhead like a built-in parasol.

Toco Toucan
Ramphastos toco
BirdThe toco toucan is the largest toucan species, instantly recognizable by its enormous bright orange bill, native to the forests and savannas of South America.

Fennec Fox
Vulpes zerda
MammalThe fennec fox is the smallest fox species in the world, adapted to the extreme heat of the Sahara Desert with famously oversized ears.

Turkey Vulture
Cathartes aura
BirdThe turkey vulture is a widespread scavenger found across the Americas, playing a critical ecological role by cleaning up carrion using one of the keenest senses of smell in the bird world.

Emerald Tree Boa
Corallus caninus
ReptileThe emerald tree boa is a non-venomous constrictor found in the rainforest canopy of the Amazon basin, spending nearly its entire life coiled in trees.
Smallest Animals FAQs
How many smallest animals are listed here?
This page currently features 12 species, and more are added regularly as the dataset grows.
What is the most popular animal in this list?
Clownfish is currently the most popular animal in Smallest Animals.
Are any of these animals endangered?
Yes — 2 of the 12 species listed are classified as vulnerable, endangered, or critically endangered.
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