Millipede

A millipede has many legs.

Most have two pairs of legs on each part of their body. This makes them slow crawlers. Some can even roll into a tight ball to stay safe.

They like to eat dead leaves and old plants. This helps the ground. One type of millipede can have over 1,300 legs!

They are very old land animals. They have lived on Earth for a long time. They are not like centipedes.

Millipedes are mostly harmless to people. Some might live in your garden.

Millipedes are ancient animals that live on land.

They belong to a group called Diplopoda. This name comes from how their bodies are built. Most millipedes have two pairs of legs on each body part. These parts are called segments.

Most millipedes move slowly. They eat dead leaves and old plants. This helps clean up the forest floor. Some types eat fungi or drink plant fluid.

Millipedes have many ways to stay safe. Some can roll into a tight ball. This protects their legs with a hard shell. Other types let out chemicals from their bodies to scare foes. Tiny bristle millipedes use small hairs instead.

These creatures are very old. They first appeared during the Silurian period. Some prehistoric millipedes were huge. One group called Arthropleura grew to over 2.5 meters long. Today, the giant African millipede is a very large species. Most millipedes are harmless to people. However, some can be pests in gardens or greenhouses.

Millipedes are fascinating creatures that live on land.

They belong to a group called Diplopoda. This name describes their unique body shape. Most millipedes have two pairs of legs on most body segments. This happens because two single segments fuse together. They can have long, cylindrical, or even flattened bodies. Some types, called pill millipedes, are short and can roll into a ball.

This group is the largest class of myriapods. This means they are a huge part of the multi-legged animal family.

Most millipedes have a very specific way of living. They are usually slow-moving detritivores. This means they eat decaying leaves and dead plant matter. Some species eat fungi or drink fluid from plants instead.

To stay safe, they use clever defenses. Many millipedes secrete chemicals from pores along their bodies. Tiny bristle millipedes use detachable bristles to protect themselves. Others, like pill millipedes, curl into a tight coil. This protects their delicate legs behind a hard exoskeleton.

Millipedes have been around for a very long time. They first appeared during the Silurian period. This makes them some of the oldest known land animals.

In the past, some groups were much larger than millipedes today. A prehistoric group called Arthropleura grew to over 2.5 meters long. Scientists are not sure if they grew large because of high oxygen. It might also be because there was no competition for food. Today, the giant African millipede is the longest living species. It is a very impressive modern relative of those ancient giants.

Scientists use special names to study these animals. The study of millipedes is called diplopodology. A person who studies them is a diplopodologist.

There are about 12,000 named species in the world. Some estimates say there could be as many as 80,000 species. They are divided into 16 different orders. One famous discovery happened in 2020. Scientists found a species called Eumillipes persephone. This millipede can have over 1,300 legs! It truly lives up to its name.

It is easy to confuse millipedes with centipedes. However, they are actually very different animals. Centipedes are carnivores that eat other animals. They also move much faster than millipedes.

Centipedes have only one pair of legs on each segment. They also have large poison claws to catch food. Millipedes are generally harmless to humans. Some can be garden pests in greenhouses, though. They might eat young seedlings that are just starting to grow. Knowing these differences helps us understand the tiny world around us.

Millipedes are a diverse group of multi-legged land animals. They belong to the class Diplopoda. This scientific name describes their most unique physical feature. Most of their body segments possess two pairs of jointed legs. This occurs because two single segments have fused together into one double-legged segment.

This class is the largest group within the myriapods. Myriapods are a subphylum of arthropods that includes centipedes and pauropods. While many people think they have exactly one thousand legs, that is not true for most species. The name comes from Latin words meaning "thousand feet." However, a species named Eumillipes persephone was discovered in 2020 with over 1,300 legs.

Most millipedes follow a specific biological process to survive. They are primarily detritivores, which means they eat decaying leaves and dead plant matter. Some species also eat fungi or drink fluids from plants.

Because they move slowly, they rely on defense rather than speed. Many species secrete various chemicals from specialized pores along their bodies. Tiny bristle millipedes use a different method. They are covered in tufts of detachable bristles for protection.

Another common defense is curling into a tight coil. This behavior protects their delicate legs and vital organs behind a hard exoskeleton. This is especially common in pill millipedes, which have shorter, specialized bodies.

Scientists divide the living Diplopoda into sixteen different orders. These are organized into two main subclasses. The first subclass is Penicillata, which contains only one order: Polyxenida, the bristle millipedes.

The second subclass is Chilognatha. This subclass contains two infraclasses. One is Pentazonia, which includes the short-bodied pill millipedes. The other is Helminthomorpha, which contains the majority of millipede species. These are often referred to as worm-like millipedes.

This complex classification helps researchers understand how different species are related.

Millipedes are among the oldest land animals on Earth. They first appeared during the Silurian period. One early fossil is Pneumodesmus newmani from the late Silurian or early Devonian. This fossil shows clear evidence of spiracles, which are breathing holes.

In the prehistoric Carboniferous period, some millipedes grew to massive sizes. A group called Arthropleura reached lengths exceeding 2.5 meters. Scientists debate why they grew so large. Some suggest high atmospheric oxygen levels helped. Others believe a lack of competition allowed them to thrive. Today, the largest living species is the giant African millipede, Archispirostreptus gigas.

There are approximately 12,000 named species of millipedes today. These are spread across 16 orders and about 140 families. However, scientists estimate the true number of species could be much higher. Some estimates suggest there are between 15,000 and 80,000 species on Earth.

Most millipedes do not travel very far. They have poor dispersal abilities because they rely on walking on land. They also require very humid habitats to survive. This often leads to genetic isolation and the creation of many unique lineages in restricted ranges.

It is important to distinguish millipedes from centipedes. They are both myriapods, but they have very different lifestyles.

Centipedes belong to the class Chilopoda. Unlike millipedes, centipedes are carnivorous and move very rapidly. They also possess venom to catch their prey. Physically, centipedes have only one pair of legs on each body segment. Their heads are also different. Centipedes have long, threadlike antennae and large poison claws. Millipedes have short, elbowed antennae and robust mandibles for grinding plant matter.

The scientific study of these creatures is called diplopodology. A person who studies them is a diplopodologist. The history of this science began with Carl Linnaeus in 1758. Later, Pierre André Latreille proposed the name Chilognatha in 1802. In 1844, Henri Marie Ducrotay de Blainville coined the name Diplopoda. Between 1890 and 1940, many researchers described thousands of new species. This era saw the highest rates of species descriptions in history. Today, molecular studies continue to challenge and refine how we classify these ancient, many-legged animals.