Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered.
01631498
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered.
01626496
Morley Read / Developing embryo of the Ecuadorian monkey frog (Phyllomedusa ecuatoriana), showing heart beating and blood flowing, Morona Santiago Province, Ecuador, (non-ex)
01626494
Morley Read / Close-up of an Amazon leaf frog (Cruziohyla Craspedopus) tadpole developing in egg, Ecuador. (non-ex)
01526356
Doug Wechsler / Horseshoe crab (Limulus polyphemus) embryos, Delaware Bay, New Jersey, USA, June.
01519538
Steve Downer / Yellow slug (Limax flavus) back lit embryo moving around in egg case.
01473554
Alastair MacEwen / Time-lapse of toadspawn from a Common toad (Bufo bufo) developing, emerging and feeding on nutrient jelly, Somerset, England, UK, April.
01358058
Solvin Zankl / Sorting Common fruit fly (Drosophila melanogaster) laboratory culture embryos for DNA injection at the Vienna Drosophila RNAi Center, Institute for Molecular Pathology, Austria.
01296265
Ingo Arndt / Mass of Sea trout (Salmo trutta trutta) eggs, with embryos visible, Europe.
01138572
Jane Burton / Common Frog (Rana temporaria) tadpoles developing in spawn
01049590
Fabio Liverani / Yellow bellied toad - eggs with developing embryos, Italy. Life cycle sequence 2
01634735
Alex Mustard / Embryos develop inside flamboyant cuttlefish (Metasepia pfefferi) eggs, laid inside a coconut shell. Anilao, Batangas marine protected area, Luzon, Philippines. Verde Island Passages, Tropical West Pa...
01631659
Morley Read / Close-up of Leaf frog (Cruziohyla craspedopus) tadpoles developing within an egg membrane, blood is circulating in the gills. Pastaza Province, Ecuador.
01631658
Morley Read / Close-up of Leaf frog (Cruziohyla craspedopus) tadpoles developing within an egg membrane, blood is circulating in the gills. Pastaza Province, Ecuador.
01631619
Morley Read / Glass frog (Centrolenidae) tadpoles developing in an egg mass, Cordillera del Condor, Zamora Chinchipe Province, Ecuador.
01631618
Morley Read / Glass frog (Centrolenidae) tadpoles developing in an egg mass, Cordillera del Condor, Zamora Chinchipe Province, Ecuador.
01631617
Morley Read / Glass frog (Centrolenidae) tadpoles developing in an egg mass, Cordillera del Condor, Zamora Chinchipe Province, Ecuador.
01631508
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered.
01631507
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered.
01631505
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered.
01631504
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered.
01631503
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 18 days development, the tadpoles are fully developed and ready to hatch, Ecuador. Endangered.
01631502
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 15 days development, the tadpoles are nearly developed, Ecuador. Endangered.
01631501
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 15 days development, the tadpoles are nearly developed, Ecuador. Endangered.
01631500
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 15 days development, the tadpoles are nearly developed, Ecuador. Endangered.
01631499
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered.
01631497
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered.
01631496
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 10 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered.
01631494
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered.
01631493
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 9 days, external gills have formed but eye and blood still unpigmented, Ecuador.
01631492
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 15 days development, the tadpoles are nearly developed, Ecuador. Endangered.
01631491
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 15 days development, the tadpoles are nearly developed, Ecuador. Endangered.
01631490
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 10 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered.
01631489
Morley Read / Glass frog (Espadarana) tadpoles developing in an egg mass, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. Endangered.
01631488
Morley Read / Glass frog (Espadarana) tadpoles developing in an egg mass, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. Endangered.
01631487
Morley Read / Glass frog (Espadarana) tadpoles developing in an egg mass, Cordillera del Condor, Zamora Chinchipe Province, Ecuador. Endangered.
01628698
Tony Wu / Seven-lined prickleback (Ernogrammus zhirmunskii) eggs, 5mm in diameter. Develpoing embryos inside fertilised eggs. Hokkaido, Japan. May.
01628689
Tony Wu / Smooth lumpsucker (Aptocyclus ventricosus) embryos inside eggs, eyes visible. Non-viable eggs without embryos presernt. Hokkaido, Japan. May.
01628687
Tony Wu / Sculpin (Alcichthys elongatus) eggs. Hokkaido, Japan. May.
01628686
Tony Wu / Sculpin (Alcichthys elongatus) eggs. Hokkaido, Japan. May.
01628666
Tony Wu / Korean sandlance (Hypoptychus dybowskii) embryos developing inside eggs, on Sargassum, close up. Hokkaido, Japan. May.
01615818
David Perpinan / Necropsy of a wild Fire salamander (Salamandra salamandra) gravid female, Barcelona, Spain. One uterine horn has been opened showing embryos. Small repro only
01605102
Steve Downer / Common frog (Rana temporaria) tadpole in frogspawn, showing gills, UK, March. Controlled conditions.
01605101
Steve Downer / Close-up of Common frog (Rana temporaria) embryos in frogspawn, UK, March. Controlled conditions.
01605100
Steve Downer / Close-up of Common frog (Rana temporaria) embryos in frogspawn, UK, March. Controlled conditions.
01605099
Steve Downer / Common frog (Rana temporaria) tadpole in frogspawn, UK, March. Controlled conditions.
01569746
Alex Hyde / European / Common Lobster (Homarus gammarus) develoing eggs. The compound eyes of the embryos can be clearly seen. Controlled conditions, Cornwall, UK. Focus stacked image.
01563842
Tony Wu / Hairchin goby (Sagamia geneionema) eggs. Though still early in development, individual transparent fish embryos are visible attached to the yellow-orange yolk sacs. Miho, Shizuoka Prefecture, Japan, P...
