When we talk about the smallest animals in the world, we're referring to the smallest vertebrates we can find. So small that we could hold them on the tip of our finger.
Bats, chameleons, amphibians, today we learn about the smallest of them all, as well as interesting facts about those specific species.
The smallest animals in the world
If we were to talk about the smallest animals in the world in general, we would have to talk about insects and fish, which can measure between 0,2 and 0,3 cm. But today we want to talk about some of the tiniest vertebrates within their own species, and we're sure they'll surprise you. Among them, we'll learn about the smallest mammal in existence.
Which are?
1. The smallest bat (Craseonycteris thonglongyai)
Since yesterday, April 17th, was World Bat Day, what better way to start than by talking about bats? Kitti's hog-nosed bat is considered the smallest mammal in the world, although it shares this title with the shrew, which we'll discuss next.
Also known as the bumblebee bat, it weighs approximately 2 grams and can measure between 2,9 cm and 3,3 cm , although its wingspan can reach up to 15 cm. It is native to Myanmar and Thailand, where it lives in limestone caves near water. If you are interested in learning more about other animals that inhabit different regions, you can read about desert animals.
2. The shrew (Suncus etruscus)
You've probably heard or even said, "Don't stare at the shrews," an expression used to describe someone lost in thought or distracted. But did you know that the shrew is the smallest mammal, weighing a mere 2 grams? Its length ranges from 3,6 to 5,3 cm, making it slightly larger than a long-nosed bat.
Shrews are animals typical of central and northern Africa, or at least that's where they originated, because they can be found in many places, especially areas near the Mediterranean Sea. Now, you might be wondering where the expression "to be daydreaming" comes from, since these little creatures don't seem to have anything to do with thoughts. The expression originated from the common sight of shrews emerging from their burrows in plowed or harvested fields, and farmers would get distracted watching them. At that point, the phrase "don't be daydreaming" began to be used as a synonym for not getting distracted from your work. And, to this day, you can still hear that expression. To understand more about the behavior of certain animals, we recommend you consult information about domestic animals and their relationship with humans.
3. The smallest chameleon (Brookesia micra)
The Brookesia chameleon is native to Madagascar and is one of the smallest reptiles in existence , measuring less than 2,5 centimeters in length, although its appearance is exactly what we picture when we think of a chameleon (except for its size, of course). It is one of the smallest amniote vertebrates in the world. Its small size is due to its habitat and the effects of island dwarfism.
Island dwarfism is a phenomenon that occurs in species living in small environments like islands, where limited resources result in a smaller size. Animal size is highly variable and can decrease or increase as species evolve and adapt to their environment. Therefore, most small animals are found in environments that have led to their reduced size. To learn more about this topic, you can read about animal evolution and how the environment influences their development.
4. The smallest snake (Leptotyphlops Carlae)
If it weren't for its color, we could easily mistake this snake for a strand of spaghetti; that tells us a lot about its size and thickness—it doesn't even reach 10 cm. It's an animal that was discovered just a few years ago, in 2008, on the island of Barbados (in the Caribbean).
This non-venomous snake is grayish-brown, but little is known about its habits. We do know that, due to its size, it feeds on small insects such as termites or ant larvae. Reptiles are a fascinating group, and if you'd like to learn more about other types of animals, we invite you to consider the marine animals that inhabit our oceans.
5. The smallest primate (Microcebus berthae)
The mouse lemur can be found in Madagascar and nearby islands. It is considered the smallest primate in the world, measuring between 5,7 and 12 centimeters in length. Specifically, they belong to a genus of strepsirrhine primates, a name that refers to a characteristic of their nose: the nostrils are comma-shaped and have sinuous openings.
They are a nocturnal species that lives in the safety of trees. Deforestation is precisely what has led to their current endangered status . To learn more about the species facing this problem, you can consult information about endangered animals in Asia.
6. The smallest insect (Scydosella musawasensis)
This insect can measure between 0,325 mm and 0,352 mm in length , making it difficult to see with the naked eye. It is considered the smallest insect in the world and belongs to the order Coleoptera.
This species was discovered in 1999, and very few specimens were found due to their small size, making them difficult to spot. They are insects with elongated, beetle-like bodies and a yellowish-brown color. If you are interested in insects, you could also research insectivorous animals and their role in the ecosystem.
7. The smallest frog (Eleutherodactylus iberia)
The Monte Iberia Eleuth frog is the smallest known amphibian, discovered in a mountain in Cuba. Very little is known about this animal, although we do know that it is endangered because there are very few specimens and that its maximum size reaches 8,5 millimeters.
8. The smallest hummingbird (Mellisuga helenae)
The bee hummingbird is a species native to Cuba and is not only the smallest hummingbird in the world but also the smallest bird overall, measuring just 5,08 centimeters tall and weighing only 1,8 grams . It is so tiny that it can easily be mistaken for an insect. Another interesting fact is that the eggs it lays are smaller than a pea. If you'd like to learn about how certain animals help with pollination , this bird is a great example.
9. The smallest seahorse (Hippocampus denise)
The pygmy seahorse is easy to spot among the corals off the coast of Indonesia if you descend to a depth of between 13 and 90 meters. It measures 16 millimeters, about the size of a human fingernail.
10. The smallest rodent (Pygmy Jerboa)
The pygmy jerboa is another tiny mammal , in this case a rodent that reaches a maximum of 8 centimeters from head to tail (and the tail is usually twice the length of its body). This size makes it the smallest rodent in the world. This tiny animal can be found in Pakistan.
