Tony Wu / Seven-lined prickleback (Ernogrammus zhirmunskii) egg, 2mm in diameter. Hokkaido, Japan. May.
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Tony Wu / Seven-lined prickleback (Ernogrammus zhirmunskii) eggs, 5mm in diameter. Develpoing embryos inside fertilised eggs. Hokkaido, Japan. May.
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Tony Wu / Sculpin (Bero elegans) eggs. Hokkaido, Japan. May.
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Tony Wu / Sculpin (Bero elegans) eggs. Hokkaido, Japan. May.
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Ingo Arndt / Hummingbird (Trochilidae) egg and Ostrich (Struthio camelus) egg, a size comparison of eggs of world's smallest and largest extant birds. Senckenberg Museum, Frankfurt, Germany.
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Nigel Cattlin / European red mite (Panonychus ulmi) eggs overwintering on Apple (Malus domestica) wood.
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Tui De Roy / Nazca booby (Sula granti) sitting on nest with egg, overlooking sea at sunset. Gardner Islet, Floreana Island, Galapagos. December 2014.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.
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SCOTLAND: The Big Picture / Close up of pebbles on beach, Scotland, UK, October.
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Yashpal Rathore / Humayuns night frog (Nyctibatrachus humayuni), cluster of eggs with tadpole in developing stage, Amboli, Maharashtra, India. Endemic to Western Ghats Vulnerable species
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Doug Wechsler / Horseshoe crab (Limulus polyphemus) embryos, Delaware Bay, New Jersey, USA, June.
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Pete Oxford / Giant Gladiator Treefrog (Hypsiboas boans) egg spawn in mud nest, Rewa River, Iwokrama Rainforest Reserve, Guyana
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Fred Bavendam / Spanish Dancer (Hexabranchus sanguineus) nudibranch egg ribbon, Kimbe Bay, Papua New Guinea
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Hiroya Minakuchi / Chum Salmon (Oncorhynchus keta) eggs and alevins, native to the Pacific Ocean
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Hiroya Minakuchi / Chum Salmon (Oncorhynchus keta) eggs, native to the Pacific Ocean
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Hiroya Minakuchi / Chum Salmon (Oncorhynchus keta) eggs, native to the Pacific Ocean
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Scott Leslie / Frog egg mass, Nova Scotia, Canada
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Grant Dixon / Rocks shaped by pounding waves, Egg Beach, Flinders Island, Tasmania, Australia
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Kim Taylor / RF- Honey Bee (Apis mellifera) cells with eggs and larvae. Surrey UK. (This image may be licensed either as rights managed or royalty free.)
Emanuele Biggi / Common toad (Bufo bufo) male swims to surface as pair behind spawn in amplexus, Luni, Viterbo, Italy.
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Russell Laman / Ostracods (ostracoda) displaying bioluminescence, spiralling up from the sand after sunset, three days after the full moon to spawn, Bonaire, Caribbean Netherlands, Caribbean Sea.
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Roland Seitre / Sulawesi forest turtle (Leucocephalon yuwonoi) egg held in hand, captive breeding program at Allwetterzoo Muenster, Germany.
Juergen Freund / Coral gametes during spawning, containing both male and female reproductive cells. Queensland, Australia. December.
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Emanuele Biggi / Lord Howe Island stick insect (Dryococelus australis) eggs developing in damp vermiculite, part of a breeding program at Bristol Zoo Gardens, Bristol, UK.
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Pal Hermansen / Insect eggs on Oxeye daisy (Leucanthemum vulgare). Akershus, Viken, Norway. July.
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David Hall / Merten's chiton (Lepidozona mertensi), Browning Pass, Queen Charlotte Strait, British Columbia, Canada. September.
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David Hall / Chiton (Mopalia sp., probably Mopalia spectabilis); Browning Pass, Queen Charlotte Strait, British Columbia, Canada. October.
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David Hall / Lined chiton (Tonicella lineata); Browning Pass, British Columbia, Canada. September.
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David Hall / Chiton (Tripoplax trifida), Long Bay, Jedediah Island, British Columbia, Canada. February. Chitons are molluscs - their shells consist of a series of 8 overlapping plates.
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David Hall / White-lined chiton (Tonicella insignis), Staples Island, Queen Charlotte Strait, British Columbia, Canada. October.
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David Hall / Blue-lined Chiton (Tonicella undocaerulea) Queen Charlotte Strait, British Columbia, Canada. September.
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David Hall / Ferreira's Chiton (Mopalia ferreirai) Browning Pass, Queen Charlotte Strait, British Columbia, September.
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Tony Wu / Newly-spawned eggs of Fat greenling / Ainame (Hexagrammos otakii) fish, Hokkaido, Japan. Each egg measures around 3mm. Photographed at a magnification of 4x life-size.
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Tony Wu / Newly-spawned eggs of Fat greenling / Ainame (Hexagrammos otakii) fish, Hokkaido, Japan. Each egg measures around 3mm. Photographed at a magnification of 4x life-size. The juvenile fish are developed...
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Tony Wu / Newly-spawned eggs of a Spotty-bellied greenling or Kujime (Hexagrammos agrammus). Each egg is about 3mm in size. A developing embryo is visible at the bottom center of the image, with the eye and jaw...
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Willem Kolvoort / Edible frog (Pelophylax esculentus) frogspawn amongst Common water-crowfoot (Ranunculus aquatilis) in garden pond. Netherlands. May.