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Physid snail (Physidae) with a small planarian in an aquarium.
A Fire-eyed Diucon (Pyrope pyrope), a species of tyrant flycatcher restricted to Chile and Argentina, waits on a branch to chase flying insects in central Chile
Jacky Winter in the Northern Country
A posing New Zealand Robin, Toutouwai, kakariwai, South Island Robin
latimeria fish isolated on the black background
A fish The three-spined stickleback (Gasterosteus aculeatus) on the background of a 5 mm measurement grid. Ichthyology research.
Red tailed catfish
Fernwren (Oreoscopus gutturalis) at Mount Lewis in Mount Lewis National Park, Queensland, Australia.
A young male Slaty Flowerpiercer (Diglossa plumbea) in the mountains of western Panama.  This species is endemic to the Talamanca Mountains of eastern Costa Rica and western Panama. Flowerpiercers are considered odd members of the tanager family (Thraupidae).  They have an upset bill with a hook on the end for piercing flowers at the bases to gain access to nectar. In this way they access nectar without benefitting the plant by participating in pollination.
Side view Rhone streber, zingel asper, freshwater fish, isolated on white
Mainland Australian Owlet-nightjar\nAegotheles cristatus cristatus\nCairns, Queensland, Australia
Sunfish
Fulvous-chested Jungle-Flycatcher (Rhinomyias olivacea) Borneo Island.
Spiny Loach fish, Lepidocephalichthys thermalis, Satara, Maharashtra, India
Vivid insect on a flowering stem
Snakehead fishing. Alive snake fish isolated on white background
An adult Plain-mantled Tit Spinetail (Leptasthenura aegithaloides) feeds among the leaves and flowers of the Coliguay shrub (Colliguaja odorifera)  near Santiago, Chile
Set of images Collection of fresh, not dead snakehead fish, isolated on a white background.
Many brown-eared bulbuls, Japanese white-eye and other birds flock to the branches of Ligustrum obtusifolium in winter to eat black berries. Native to Japan, Korea and China, Ligustrum obtusifolium, commonly called border privet, is a perennial, deciduous shrub, which grows to 3 meters in height and has many stemmed branches. White flowers appear in June and fruits appear in September and persist into winter.
Top view of spiny goby fish isolated on white background, Pseudapocryptes elongatus
Fulvous-chested Jungle-Flycatcher (Rhinomyias olivacea) Borneo Island.
South-eastern White-browed Scrubwren\nSericornis frontalis frontalis\nSydney, New South Wales, Australia
Green Warbler Finch (Certhidea olivacea) on the Galapagos islands. One of the Darwin's finches.
an eel searches for food on the Los Llanos region of Colombia
The Pumpkinseed fish (Lepomis gibbosus) in natural habitat underwater
Swamp Flycatcher.\nThe swamp flycatcher or swamp alseonax (Muscicapa aquatica) is a species of bird in the family Muscicapidae. It is found in Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Democratic Republic of the Congo, Ivory Coast, Gambia, Ghana, Guinea-Bissau, Kenya, Mali, Niger, Nigeria, Rwanda, Senegal, South Sudan, Tanzania, Togo, Uganda, and Zambia. Its natural habitats are subtropical or tropical moist shrubland and swamps.
little  stickleback on white background
The Galápagos flycatcher (Myiarchus magnirostris) also known as the large-billed flycatcher is a species of bird in the family Tyrannidae. It is endemic to the Galápagos Islands, where it is present on all the main islands. Santa Cruz Island, Ecuador. Galapagos Islands National Park
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