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Eggs of Maria's Giant Glass Frog (Nymphargus mariae) in the Ecuadorian Amazon with a waterfall in the background
Glass frogs (family Centrolenidae) lay their eggs on vegetation overhanging streams and the tadpoles drop into the water once they have developed, thus avoiding aquatic egg predators. Listed as Endangered by the IUCN.
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Tadpole of Common Frog (Rana temporaria) with gills
Tadpole of Common Frog (Rana temporaria) with gills
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Tadpole of Common Frog (Rana temporaria) with gills
Tadpole of Common Frog (Rana temporaria) with gills
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Tadpoles of Common Frog (Rana temporaria) with gills
Tadpoles of Common Frog (Rana temporaria) with gills
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Tadpole of Common Frog (Rana temporaria) with gills, UK
Tadpole of Common Frog (Rana temporaria) with gills, UK
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Tadpole gill blood circulation: Common Frog (Rana temporaria) tadpole collected from pond near Newcastle Emlyn, UK.
Transparent gill branch capillaries reveal red blood cells flowing through them. Low magnification videomicrography using dark field illumination, Horizontal field length approximately 0.5 mm. Olympus BH-2 microscope X6.3 Leitz Plan...
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Tadpoles of Common Frog (Rana temporaria) with gills
Tadpoles of Common Frog (Rana temporaria) with gills
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BCU Common Frog (Rana temporaria) Tadpoles feeding on small dead frog, England
BCU Common Frog (Rana temporaria) Tadpoles feeding on small dead frog, England
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CU Common Frog (Rana temporaria) Tadpoles feeding on dead fish, England
CU Common Frog (Rana temporaria) Tadpoles feeding on dead fish, England
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CU frog tadpoles amongst frog spawn, United Kingdom
CU frog tadpoles amongst frog spawn, United Kingdom
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CU frog tadpole development inside frog spawn, pans left to more tadpoles developing, United Kingdom
CU frog tadpole development inside frog spawn, pans left to more tadpoles developing, United Kingdom
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Glass frog larvae (tadpoles) developing in their eggs, twelve days after being laid.
Glass frogs (family Centrolenidae) inhabit moist tropical forests in Central and northern South America. They typically lay their eggs on a leaf above water, so that the tadpoles fall into the water as soon as they hatch. Glass frogs...
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CU Common Frog (Rana temporaria) Tadpoles feeding underwater, England
CU Common Frog (Rana temporaria) Tadpoles feeding underwater, England
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CU Common Frog (Rana temporaria) Tadpoles feeding on small dead frog, England
CU Common Frog (Rana temporaria) Tadpoles feeding on small dead frog, England
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Eggs of Maria's Giant Glass Frog (Nymphargus mariae) in the Ecuadorian Amazon with a waterfall in the background
Glass frogs (family Centrolenidae) lay their eggs on vegetation overhanging streams and the tadpoles drop into the water once they have developed, thus avoiding aquatic egg predators. Listed as Endangered by the IUCN.
Getty Images
Eggs of Maria's Giant Glass Frog (Nymphargus mariae) in the Ecuadorian Amazon with a waterfall in the background
Glass frogs (family Centrolenidae) lay their eggs on vegetation overhanging streams and the tadpoles drop into the water once they have developed, thus avoiding aquatic egg predators. Listed as Endangered by the IUCN.
Getty Images
Eggs of Maria's Giant Glass Frog (Nymphargus mariae) in the Ecuadorian Amazon with a waterfall in the background
Glass frogs (family Centrolenidae) lay their eggs on vegetation overhanging streams and the tadpoles drop into the water once they have developed, thus avoiding aquatic egg predators. Listed as Endangered by the IUCN.
Getty Images
Eggs of Maria's Giant Glass Frog (Nymphargus mariae) in the Ecuadorian Amazon.
Glass frogs (family Centrolenidae) lay their eggs on vegetation overhanging streams and the tadpoles drop into the water once they have developed, thus avoiding aquatic egg predators. Listed as Endangered by the IUCN.
Getty Images
Tadpole of Common Frog (Rana temporaria) with gills
Tadpole of Common Frog (Rana temporaria) with gills
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Tree frog eggs on leaf, tadpoles within eggs, Panama.
Tree frog eggs on leaf, tadpoles within eggs, Panama.
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Tadpoles of Common Frog (Rana temporaria) with gills
Tadpoles of Common Frog (Rana temporaria) with gills
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Tree frog eggs on leaf, tadpoles within eggs, Panama.
Tree frog eggs on leaf, tadpoles within eggs, Panama.
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Tadpoles of Common Frog (Rana temporaria) with gills
Tadpoles of Common Frog (Rana temporaria) with gills