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Test your knowledge about the tiniest creatures on Earth, from insects to mammals, and learn fascinating facts about their sizes and habitats.
1
48 random squares
What is the world's smallest mammal?
Kitti's hog-nosed bat
Bumblebee bat
Etruscan shrew
Pygmy marmoset
28% got this right
The bat weighs only 2 grams and has a wingspan of 15 cm.
2
48 random squares
How long is the world's smallest reptile, the Brookesia nana chameleon?
0.5 —
1.1
— 4
53% got this right
The male Brookesia nana measures just 1.1 cm in length.
3
48 random squares
What is the world's smallest bird?
Bee hummingbird
Elf owl
Goldcrest
Weebill
58% got this right
The bee hummingbird measures only 5-6 cm in length and weighs 1.95 grams.
4
48 random squares
Which of these animals are among the smallest fish in the world?
Paedocypris progenetica
Schindleria brevipinguis
Angelfish
Guppy
23% got this right
Paedocypris progenetica measures 7.9 mm, and Schindleria brevipinguis measures 8 mm.
5
48 random squares
What is the world's smallest insect?
Fairyfly
Aphid
Fruit fly
Thrips
29% got this right
Fairyflies are tiny parasitic wasps, with some species measuring only 0.14 mm.
6
48 random squares
How small is the world's smallest spider, the Patu digua?
0.1 —
0.37
— 3.5
mm
51% got this right
The Patu digua measures only 0.37 mm in body length.
7
48 random squares
What is the world's smallest frog?
Paedophryne amauensis
Bornean tree-hole frog
Golden poison dart frog
Microhyla nepenthicola
24% got this right
Paedophryne amauensis measures only 7.7 mm in length.
8
48 random squares
Order these animals from smallest to largest: Bee hummingbird, Kitti's hog-nosed bat, Paedophryne amauensis, Patu digua
1.
Patu digua
2.
Paedophryne amauensis
3.
Bee hummingbird
4.
Kitti's hog-nosed bat
87% got this right
From smallest to largest: Patu digua (spider), Paedophryne amauensis (frog), Bee hummingbird, Kitti's hog-nosed bat
