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Fresh living shrimp, prawns isolated on white background
Stone crayfish, Austropotamobius torrentium, isolated on white
Close up crayfish in aquariums
a female flat-bellied dragonfly (Libellula depressa) perches on a withered branch. In the background a green meadow. There is a lot of space for text. The dragonfly is photographed from above
Head of sturgeon fish (sturgeon)
A male migrant hawker hanging from a bramble in the English countryside.
Tot 35-44mm, Ab 20-30mm, Hw 24-30mm.\nOne of the larger Sympetrum species. In the field, males may be noticed because they seldom become as deeply red as other species and have a rather parallel-sided abdomen.\nHabitat: Wide range of places, especially preferring warm, stagnant waters. These are often shallow and bare, this species being a pioneer of newly created ponds. Occasionally in flowing or brackish water.\nFlight Season: May be seen all year in the Mediterranean. In Northern Europe, appears from early June, becoming abundant in July and flying into November. One of the last dragonflies to be encountered in autumn.\nDistribution: Common in most of our area, becoming less common relative to S. vulgatum in a north-easterly direction. Extends to Japan. Migrations are often seen and are sometimes massive.\n\nThis is a common Species in the Netherlands.
Dragon-fly, view from above, blue - black, big, sitting on a rock, wings spreaded out, USA, Kenai Peninsula
A Damselfly at rest
This fishfly (genus Nigonia) is closely related in appearance to Hellgrammites
Dragonfly on leaf - animal behavior.
Side view of a live crayfish on white background.
Vivid Dancer Damelfly, Argia vivida, Audubon Mayacamas Mountain Sanctuary, Sonoma County, California, bright blue, in tandem, tandem flight. Mateing,
Adult Male Lovebug Insect of the Genus Plecia
Tot 36-45mm, Ab 23-38mm, Hw 28-33mm, about the size of Sympetrum striolatum.\nIdentification:\nThe common, small Orthetrum of flowing water throughout Europe. The Keeled Skimmer is characterized by its rather small size, fairly slender tapering abdomen and large pterostigma (around 4mm long).\nBehavior:\n Normally sits on vegetation, seldom on the ground.\nOccurrence:\nCommon around the Mediterranean, but generally local in central and Southern Europe.\nHabitat:\nRunning waters, such as streams and ditches. In north of range mainly runnels in boggy areas.\nFlight Season: \nFrom April to November; most abundant from June to August.\n\nThe Species is quite local in the Netherlands in the described Habitats. This Picture is made on the Veluwe in begin of August 2021 along a small Brook.
Cooked shrimp on a black background,  food, seafood, crustacean
Lepidoptera larvae in the wild, North China
Grasshopper extreme close up in Montana ranch country in the United States of America (USA) John Morrison Photographer
Betta fish underwater shot, Siamese fighting fish in Aquarium
Plate of seafood with fresh lobster, mussels, oysters as an ocean gourmet dinner on a dark background. Top view. Panorama.
Tot 33-37mm, Ab 23-25mm, Hw 29-32mm.\nLarge, broad, club-tailed species, Males often perch on lilypads. They are dark, marked with white highlights on the face, waist and at the tips of the wings and abdomen. This makes identification through binoculars easy.\nBehavior:\nBoth sexes fly actively over open water, frequently resting on floating vegetation (Nuphar, Nymphaea, Potamogeton), where mating may also take place. Male often raises clubbed tail.\nOccurrence:\nOccurrence is scattered and populations are normally rather small. May be abundant locally.\nHabitat:\nPools and lakes with moderate nutrient levels and rich aquatic vegetation.\nFlight Season: \nMid May to early August; most abundant in June.\n\nThis Picture is made in the Wieden (Overijssel, the Netherlands) in mid June of 2021.
Mantis is a type of mantis originating from the island of Borneo. It has a unique body shape and is colored like dried leaves to disguise itself for prey.
shell of cicada on white background
30 august 2022, Basse Yutz, Yutz, Thionville Portes de France, Moselle, Lorraine, Grand Est, France. In a public park, at the edge of a body of water, a male Common Scarlet-darter landed on a reed leaf.
Closeup of a large Brown recluse spider trying to pull a cricket up a wall.
Different Forms of Plants at Torre del Lago, Italy
The most common of hawker dragonflies and can be seen in good numbers when emerged and on the wing into late autumn
Free Images: "bestof:Astacus anatomy 1.jpg en Inner anatomy of a male European crayfish Astacus astacus 2013-10-01 15 08 36 Leitfaden für das Zoologische Praktikum 6 Aufl G Fischer"
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