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An illustration of a Trilobite moving about on a Cambrian Period (400 million years ago) sea bottom. Trilobites are a well-known fossil group of extinct marine arthropods that form the class Trilobita.

Collected along the Devil's River in West Texas.

Sea life shrimp Aquatic organism Underwater Mediterranean sea Scuba diver point of view. Other name: Scampi, Nephrops norvegicus, Nephropidae shrimp-lobster, Norway lobster, Škamp.

A marsh springtail, Isotomurus palustris on wall of hose.

A Silverfish, Lepisma saccharinum on floor, Insect running on floor.

a fly larva clings to a roack in the Middle Fork of the Flathead River, Montana

Image of Brown Butterfly Moth (Lasiocampidae) on nature background. Insect, Animal

$Blue-spot Mantis Haptosquilla stoliura occurs in the tropical Indo-West Pacific in shallow coastal or nearshore reefs in tidal pools and among hard coral fragments in the intertidal area. The iridescent blue patch on the first maxillipeds is distinctive. The max. length of this species seems to be incertain. Some indicate 6.5cm as max. length, others 11.5cm. The length of this specimen is probably 10cm. \nThe ability of Mantis species to see circularly polarised light has led to studies to determine if the mechanisms by which their eyes operate can be replicated for use in reading optical information storage devices. \nTriton Bay, West Papua Province, Indonesia, \n3°54'41.05 S 134°7'18.205 E at 15m depth$

A 3D illustration of the extinct Trilobite Paradoxides on a pebble beach 500 million years ago.

Clausiliidae Door Snail. Digitally Enhanced Photograph.

Image of a Giant Stonefly photographed near Yankee Meadows in Dixie National Forest, Utah.

Ligia occidentalis is a species of rock slater in the family Ligiidae. Habitat generalist of rocky shores. Baja California Sur, Mexico.

Close up of a woudlouse species, Porcellio spinicornis.

With transparent wings, a caddisfly perches on granite boulder along the South Platte River in Waterton Canyon, Littleton, Colorado.

Ocnerodes fallaciosus grasshopper with vestigial wings with a mimicry that makes them look like a stone or a twig perched on a stone with a brown background orange natural light

The raspberry cane borer is a lepidopteran that is extremely harmful to raspberries.

leech or bloodsucker from new guinea showing its movement

$Tot 50-55mm, Ab, 37-42mm, Hw 30-35mm.\nIdentification:\nThe characters of this clubtail are rather different . It prefers very large (lowland) rivers and may easily be overlooked. Populations can best be found by searching for exuviae on river banks.\nOccurrence:\nA north Asian species, with western outposts in large rivers such as the Rhine, Loire and Po. Common in large lowland rivers in eastern Europe, but staged a strong comeback in Western Europe in the 1990s. Now abundant in rivers such as the Rhine, Elbe and Danube, right down to their estuaries.\nHabitat:\nSlow flowing lower sections of large rivers with sandy beds. Larvae burrow shallowly in fine substrates with relatively high concentrations of organic matter.\nFlight Season:\nLate and protracted, compared with other Gomphus species, from early June to early October, with maximum emergence in June and July.\n\nThis is a scarce Gomphus Species along the large Dutch Rivers. This Picture is made along the River Waal, near “Slot Loevestein” in the Province of Gelderland.$

Armadillidium vulgare Common Pill Woodlouse. Digitally Enhanced Photograph.

An illustration of the extinct eurypterids Kokomopterus hunting trilobites on a Silurian seafloor 418 million years ago.

Whiteleg shrimp, Litopenaeus vannamei or Penaeus vannamei, known as Pacific white shrimp or King prawn, is a species of prawn of the eastern Pacific Ocean commonly caught or farmed for food. Sea of Cortez, Baja California, Mexico.

Woodlouse, extreme macro close-up with high magnification

Acanthocinus aedilis - long horned beetle - Siberian Timberman

True bug on a burned trunk of Canary Island pine, Pinus canariensis. Integral Natural Reserve of Inagua. Tejeda. Gran Canaria. Canary Islands. Spain.

Insect exuviae remains of an exoskeleton of an insect. Life cycle in a natural ecosystem

Free Images: "bestof:Atrypid dorsal.jpg en Atrypa sp ; Couvinian Middle Devonian ; El Pical Leon Spain Eroded to show spiralia on the right From the collection of Clive Champion"

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