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Millipede

life science Maturity 5-7 Next article →

Millipedes are fascinating creatures that live on land.

Millipede centipede side-by-side
Millipede centipede side-by-side

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.

Millipede body types 1
Millipede body types 1

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.

Anadenobolus monilicornis 03
Anadenobolus monilicornis 03

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.

Octoglena sierra (Family Polyzoniidae) (3405605943)
Octoglena sierra (Family Polyzoniidae) (3405605943)

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.

Millipede centipede side-by-side
Millipede centipede side-by-side

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.

Millipede centipede side-by-side
Millipede centipede side-by-side

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.

Millipede centipede side-by-side
Millipede centipede side-by-side

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.

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🖼️ Images & Media (18)
File:Millipede order species comparison.png
Millipede order species comparison.png
File:Octoglena sierra (Family Polyzoniidae) (3405605943).jpg
Octoglena sierra (Family Polyzoniidae)...
File:Anadenobolus monilicornis 03.JPG
Anadenobolus monilicornis 03.JPG
File:Harpaphe haydeniana 0446.JPG
Harpaphe haydeniana 0446.JPG
File:Pauropus huxleyi.jpg
Pauropus huxleyi.jpg
File:Millipede centipede side-by-side.png
Millipede centipede side-by-side.png
File:Millipede body types 1.jpg
Millipede body types 1.jpg
File:Millipede anterior anatomy.png
Millipede anterior anatomy.png
File:Paranota comparison.png
Paranota comparison.png
File:Female Illacme plenipes (MIL0020) with 618 legs - ZooKeys-241-077-SP-6-top.jpg
Female Illacme plenipes (MIL0020) with...
File:Mating millipedes.jpg
Mating millipedes.jpg
File:Anamorphic development in Nemasoma.png
Anamorphic development in Nemasoma.png

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