8 Smallest Species on Earth

Etruscan Shrew (Suncus etruscus): The Etruscan shrew holds the title for the smallest mammal by mass, weighing only about 1.8 grams on average.

Paedocypris progenetica: This tiny fish species, found in peat swamps on the Indonesian island of Sumatra, measures just 7.9 millimeters in length, making it one of the smallest known vertebrates.

Bee Hummingbird (Mellisuga helenae): The bee hummingbird is the smallest bird species in the world, measuring only about 5 centimeters in length and weighing less than 2 grams.

Fairyfly (Family Mymaridae): Fairyflies are tiny parasitic wasps, with some species measuring less than 0.2 millimeters in length, making them one of the smallest insects in the world.

Speckled Padloper Tortoise (Homopus signatus): The speckled padloper tortoise holds the title for the smallest tortoise species, with adults typically measuring less than 10 centimeters in length.

Brookesia micra: This species of chameleon, native to Madagascar, is one of the smallest reptiles in the world, with adults reaching lengths of just 2.9 centimeters.

Paedophryne amauensis: Found in Papua New Guinea, this species of frog holds the title for the world's smallest vertebrate, with adults averaging just 7.7 millimeters in length.

Rotundabaloghia fragilis: This species of mite, discovered in 2020, holds the record for the smallest arthropod, with adults measuring only about 0.1 millimeters in length.


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