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
01692205
Pascal Kobeh / Lesser spotted dogfish / Small-spotted catshark (Scyliorhinus canicula) embryo with the yolk sac and egg inside, France, Mediterranean Sea. July.
01689888
Tony Wu / Developing embryos of Japanese horseshoe crabs (Tachypleus tridentatus), four to six weeks after spawning, Japan, Pacific Ocean.
01689887
Tony Wu / Developing embryos of Japanese horseshoe crabs (Tachypleus tridentatus on the cusp of hatching, approximately two months after the eggs were deposited, Japan, Pacific Ocean.
01689885
Tony Wu / Developing embryos of Japanese horseshoe crabs (Tachypleus tridentatus) on the cusp of hatching, approximately two months after the eggs were deposited, Japan, Pacific Ocean.
01689535
Joel Sartore / Photo Ark / Studio shot of four juvenile small-spotted catsharks (Scyliorhinus canicula) resting on top of an egg case with embryo inside, the embryo moving causes the young to swim away, Vasco da Gama Aquarium....
01682559
Nick Upton / Lesser spotted catshark / Dogfish (Scyliorhinus canicula) embryo attached to yolk inside egg case of in a rockpool, The Gower, Wales, UK, September.
01679449
Tony Wu / Spotty-bellied greenling (Hexagrammos agrammus) male, protecting several clutches of eggs resulting from spawning with multiple females. During the autumn/ winter breeding season, males keeps watch ov...
01653672
Morley Read / Fringed leaf frog (Cruziohyla craspedopus) tadpole developing within egg, external gills visible. The egg mass is laid overhanging a small water body such as a fallen hollow tree. Pastaza Province, Ec...
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.
