1. Fairy Penguin, the cutest and most adorable penguin, only about 33 centimeters or 13 inches tall.
Fairy Penguin
2. The Netherland Dwarf Rabbit, the world's smallest rabbit, measures approximately 20-25 cm in length and weighs between 1-1.5 kg.
Netherland Dwarf Rabbit
3. Royal antelope: The smallest of the antelope species, it can grow to 25-31 cm in height and weigh between 4.5 kg.
Royal Antelope
4. The Borneo elephant, a type of pygmy elephant, stands only about 2.5 meters tall and is the smallest elephant in the world.
Borneo elephants
5. Tarsier, the smallest known monkey species in the world, with a body length of only 9-12 cm and a weight of about 150 grams.
Tarsiers
6. Thumbelina, the smallest pony, holds the Guinness World Record for the smallest horse, standing only 44.5 centimeters tall.
Thumbelina
7. Mediterranean miniature donkey, loves to act cute and affectionate, average height is about 70 cm.
Miniature Donkey
8. Pygmy three-toed sloth: body length 48-53 cm, weight 2.5-3.5 kg, size only 20% of a common sloth.
Pygmy three-toed sloth
9. Tree-like octopus, the world's smallest octopus, about 5 centimeters long.
Tree-like octopus
10. Nanochameleon, nanoscale size, male total length 21.6 mm, female total length 28.9 mm.
Nano Chameleon
11. Etruscan shrew, also the world's smallest mammal, measuring 4 centimeters in length and weighing less than 2 grams.
Etruscan shrew
12. The Irukanji jellyfish, only 2 centimeters long, is the most venomous jellyfish in the world, its toxins being hundreds of times more potent than those of a cobra.
Irukanji jellyfish
13. Sumatran rhinoceros, the smallest living rhinoceros species and a rare animal with only about 60 individuals remaining worldwide, stands only about 1 meter tall.
Sumatran rhinoceros
14. Dwarf anteater, the smallest anteater, about 45 cm in length.
Pygmy anteater
15. Tiny seahorse, about one centimeter long, is the smallest of the seahorses.
Tiny Seahorse
16. Hummingbird, the smallest bird species in the world, with a body length of 5-6 cm and a weight of 1.6-2.6 grams, about the size of a quail egg.
Humming Bee Bird
17. Oculudentopteryx, an extinct moa species, estimated to be 5-6 cm in length and weighing less than 2.8 grams.
opticon
18. Miniature dog, a small breed, only the size of a palm.
Miniature Dog
