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Crane fly, daddy-longlegs, Pachyrhina crocata in grass hanging in sunset light

plant Zea Stem C.S. under light mircoscope with white background

Freshwater aquatic zooplankton and algae under microscope view

Tadpoles of water frogs with plants in a lake in April

Catfish eat food that feeds many freshwater fish for agriculture and aquaculture

Ruddy Darter Red Dragonfly perched on a reed leaf in Woodwalton Fen nature reserve.

Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.

Microscopic Rotifer or Rotifera under a microscope, freshwater bentic organism filtering water.

A Southern Hawker Dragonfly hanging from a blackberry bush with wings open

Sciaroidea insect Fossil inside Burmese Amber of Cenomanian Era, 100 million years ago, from the state of Myanmar

Water strider on surface of water. Pond insects.

A mating pair of Hairy Dragonfly, Brachytron pratense, perching on a Stinging Nettle plant growing at the edge of a lake.

Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.

Aquatic hemiptera on the surface of the Gambia River. Niokolo Koba National Park. Tambacounda. Senegal.

A natural garden pond with clear water and a range of water plants

An insect walking on the surface of the water.

$A brown and rather plain hawker, with largely clear wings and conspicuous green eyes. The yellow triangle on S2 is diagnostic, as are the colour and shape of the hind wing base. Males patrol marshy ditches, reedy lakesides and other lush, calm waters.\nField characters: Tot 62-66mm, Ab 47-54mm, Hw 39-45mm.\nHabitat: Ditches, marshes, ponds and lakes with rich vegetation. Favours swamps of Water-soldier (Stratiotes aloides) in most of its northern range.\nFlight Season: May to August in most of its range, most abundant in June; earlier than most Aeshnia.\nDistribution: Widespread but very local in much of its range, especially in south-west, often numerous where present. \n\nThis is not a very common Species in the described Habitats in the Netherlands.$

Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae

Beautiful colorful Banded Demoiselle sitting on grass straw by a river

Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.

Striped Pond Skater Nymph of the Subfamily Gerrinae

Bacteria Gram positive in sputum gram stain.red background.

A low angled view of a Mayfly resting in the grass with early morning dewdrops

Eggs of Hookworm in stool, analyze by microscope

Several Chilean Water Striders (Aquarius chilensis) wait for prey to fall onto the surface of a pond in central Chile, after which they will stab it with their poisonous mouthparts and suck the body contents dry.

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