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Blautopf (Blue pot) turns blue when sunlight hits it due to the limestone particles in the water.
Perch (Perca fluviatilis)
The Rio Tinto in Huelva, Spain, exhibits striking red and orange iron-rich deposits and green microorganism traces
abstract shot of sea life, silver tarpon swimming inside aquarium.
Sophora japonica in the blue sky
Comma butterfly on budding goose-berry.
Wild duck mom and her duckling in the lake among fish
ocular astronotus or Oscar fish in an aquarium close-up. selective focus
Mold samples on white background. A petri dish with colonies of microorganisms for bacteriological analysis in a microbiological laboratory. Close up view of mould
A beautiful goldfish swimming in an aquarium,
A polluted lake called the Red Lake in Serbia
Hoodoos in Bryce Canyon National Park, Utah
Close-up detail of multiple plates of petri dishes containing cultures of Methicillin-Resistant Staphylococcus Aureus (MRSA). Healthcare and infectious diseases concept.
Vibrant tree in a meadow
Long exposure of water cascading over the colorful, iron-rich rocks of Rio Tinto.
Hairy Caterpillar crawling Cycad leaf.
A natural phenomena on the west coast of the south island; Oparara's waters are dark brown because of the takin leeched out of the rainforest.
A flame-colored tanager perches on a tree branch in southern Costa Rica.
Goldfish about to become a phishing victim if it takes the rubber worm and hook bait.
Bryce Canyon National Park in Utah
Frozen Koi pond with a group of fish under the frozen ice.
Close up of a Petri dish with blue specimens in it
Live red nile tilapia fish swimming floating in aquarium water for sale
GoldFish.
Fine koi in advanced breeding ponds
goldfish aquarium
Ranchu Lion Head goldfish in fish tank
Bryce Canyon landscape.
Goldfish in Yamatmkoriyama Nara
Close-up of yellow flowering plant
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