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    • North Americaamphibians
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American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
01397701
John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
01397700
John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
01397699
John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
01397698
John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
01397697
John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
01397696
John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA
Green Frog (Rana clamitans) among duck weed on water surface. New York state, USA, September.
01365754
John Cancalosi / Green Frog (Rana clamitans) among duck weed on water surface. New York state, USA, September.
Green frog (Rana clamitans) on mossy stone. New York, USA, October
01324924
John Cancalosi / Green frog (Rana clamitans) on mossy stone. New York, USA, October
Green Frog (Rana clamitans) in water. New York, USA, October
01324937
John Cancalosi / Green Frog (Rana clamitans) in water. New York, USA, October
Green frog (Rana clamitans) on mossy log. New York, USA, October
01324936
John Cancalosi / Green frog (Rana clamitans) on mossy log. New York, USA, October
American toad (Bufo americanus) or "Hop toad" pair in amplexus, the male (top) clasping the female. New York, USA, Jan 2000
01324909
John Cancalosi / American toad (Bufo americanus) or "Hop toad" pair in amplexus, the male (top) clasping the female. New York, USA, Jan 2000
Pacific Chorus Frog (Pseudacris regilla) resting on leaves. This frog is known for its rasping vocalisation. Oregon, USA
01286214
John Cancalosi / Pacific Chorus Frog (Pseudacris regilla) resting on leaves. This frog is known for its rasping vocalisation. Oregon, USA
Male Green Frog (Rana clamitans) sheltering in mossy folliage, New York, USA
01286212
John Cancalosi / Male Green Frog (Rana clamitans) sheltering in mossy folliage, New York, USA
Green Frog (Rana clamitans) on green leaves, New York, USA
01275659
John Cancalosi / Green Frog (Rana clamitans) on green leaves, New York, USA
Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
01261926
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
01261928
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
Couch's Spadefoot (Scaphiopus couchii) pair in amplexus, USA
01261930
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) pair in amplexus, USA
Red Eft, the terrestrial form of the Red-Spotted Newt (Notophthalmus viridescens viridescens) New York, USA
01261900
John Cancalosi / Red Eft, the terrestrial form of the Red-Spotted Newt (Notophthalmus viridescens viridescens) New York, USA
Couch's Spadefoot (Scaphiopus couchii) pair in amplexus, showing female laying eggs, USA
01261932
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) pair in amplexus, showing female laying eggs, USA
Hellbender (Cryptobranchus alleganiensis) an aquatic salamander, captive, New York, USA
01261906
John Cancalosi / Hellbender (Cryptobranchus alleganiensis) an aquatic salamander, captive, New York, USA
Couch's Spadefoot (Scaphiopus couchii) Pair in amplexus, showing female laying eggs, USA
01261925
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) Pair in amplexus, showing female laying eggs, USA
Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
01261927
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
Couch's Spadefoot (Scaphiopus couchii) pair in amplexus, USA
01261929
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) pair in amplexus, USA
Couch's Spadefoot (Scaphiopus couchii) two males competing to mate with one female, USA
01261931
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) two males competing to mate with one female, USA
Red Eft, the terrestrial form of the Red-Spotted Newt (Notophthalmus viridescens viridescens) New York, USA
01261901
John Cancalosi / Red Eft, the terrestrial form of the Red-Spotted Newt (Notophthalmus viridescens viridescens) New York, USA
Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
01261933
John Cancalosi / Couch's Spadefoot (Scaphiopus couchii) several males competing to mate with one female, USA
American toad (Bufo americanus) male calling to attract female, New York, USA
01255605
John Cancalosi / American toad (Bufo americanus) male calling to attract female, New York, USA
Green frog (Rana clamitans) metamorphosing frog showing tadpole tail and frog limbs, New York, USA, captive
01255588
John Cancalosi / Green frog (Rana clamitans) metamorphosing frog showing tadpole tail and frog limbs, New York, USA, captive
American toad (Bufo americanus) pair in amplexus, laying eggs, New York, USA
01255609
John Cancalosi / American toad (Bufo americanus) pair in amplexus, laying eggs, New York, USA
Green frog (Rana clamitans) nearly fully metamorphosed showing remnants of tadpole tail, New York, USA, captive
01255577
John Cancalosi / Green frog (Rana clamitans) nearly fully metamorphosed showing remnants of tadpole tail, New York, USA, captive
Green frog (Rana clamitans) tadpole, intermediate stage of growth with back legs, New York, USA, captive
01255592
John Cancalosi / Green frog (Rana clamitans) tadpole, intermediate stage of growth with back legs, New York, USA, captive
American toad (Bufo americanus) pair in amplexus, laying eggs, New York, USA
01255597
John Cancalosi / American toad (Bufo americanus) pair in amplexus, laying eggs, New York, USA
Green frog (Rana clamitans) male calling to attract mate, New York, USA
01255601
John Cancalosi / Green frog (Rana clamitans) male calling to attract mate, New York, USA
American toad (Bufo americanus) male calling to attract female, New York, USA
01255599
John Cancalosi / American toad (Bufo americanus) male calling to attract female, New York, USA
American toad (Bufo americanus) pair in amplexus, New York, USA
01255606
John Cancalosi / American toad (Bufo americanus) pair in amplexus, New York, USA
Green frog (Rana clamitans) recently metamorphosed frog showing remnants of tadpole tail, New York, USA, captive
01255589
John Cancalosi / Green frog (Rana clamitans) recently metamorphosed frog showing remnants of tadpole tail, New York, USA, captive
American toad (Bufo americanus) pair in amplexus laying eggs, New York, USA
01255604
John Cancalosi / American toad (Bufo americanus) pair in amplexus laying eggs, New York, USA
Green frog (Rana clamitans) tadpole, intermediate stage of growth with back legs emerging, New York, USA, captive
01255593
John Cancalosi / Green frog (Rana clamitans) tadpole, intermediate stage of growth with back legs emerging, New York, USA, captive
Green frog (Rana clamitans) in shallow water, New York, USA
01255591
John Cancalosi / Green frog (Rana clamitans) in shallow water, New York, USA
American toad (Bufo americanus) pair in amplexus laying eggs, New York, USA
01255596
John Cancalosi / American toad (Bufo americanus) pair in amplexus laying eggs, New York, USA
Green frog (Rana clamitans) male calling to attract mate, New York, USA
01255602
John Cancalosi / Green frog (Rana clamitans) male calling to attract mate, New York, USA
Green frog (Rana clamitans) nearly metamorphosed frog showing remnants of tadpole tail, New York, USA, captive
01255585
John Cancalosi / Green frog (Rana clamitans) nearly metamorphosed frog showing remnants of tadpole tail, New York, USA, captive
Wood Frog (Rana sylvatica / Lithobates sylvaticus) pair in amplexus on communal egg mass, NY, USA
01240235
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) pair in amplexus on communal egg mass, NY, USA
American Toad (Bufo americanus) pair in amplexus, mating, female laying eggs, NY, USA
01240234
John Cancalosi / American Toad (Bufo americanus) pair in amplexus, mating, female laying eggs, NY, USA
Wood Frog (Rana sylvatica / Lithobates sylvaticus) pair in amplexus, mating, NY, USA
01240223
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) pair in amplexus, mating, NY, USA
Wood Frog (Rana sylvatica / Lithobates sylvaticus) several males attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
01240221
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) several males attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
Wood Frog (Rana sylvatica / Lithobates sylvaticus) several males attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
01240220
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) several males attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
Wood Frog (Rana sylvatica / Lithobates sylvaticus) several attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
01240226
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) several attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
Wood Frog (Rana sylvatica / Lithobates sylvaticus) pair in amplexus, mating, NY, USA
01240224
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) pair in amplexus, mating, NY, USA
American Toad (Bufo americanus), male calling to attract female, vocal sac inflated, NY, USA
01240199
John Cancalosi / American Toad (Bufo americanus), male calling to attract female, vocal sac inflated, NY, USA
Spring Peepers tree frogs (Pseudacris crucifer / Hyla crucifer), pair in amplexus, mating, NY, USA
01240198
John Cancalosi / Spring Peepers tree frogs (Pseudacris crucifer / Hyla crucifer), pair in amplexus, mating, NY, USA
Boy, aged 12, observing Wood Frog (Rana sylvatica), NY, USA, model released
01240229
John Cancalosi / Boy, aged 12, observing Wood Frog (Rana sylvatica), NY, USA, model released
Wood Frog (Rana sylvatica) portrait, NY, USA
01240213
John Cancalosi / Wood Frog (Rana sylvatica) portrait, NY, USA
Spring Peeper tree frog (Pseudacris crucifer / Hyla crucifer) male calling to attract female, vocal sac inflated, NY, USA
01240197
John Cancalosi / Spring Peeper tree frog (Pseudacris crucifer / Hyla crucifer) male calling to attract female, vocal sac inflated, NY, USA
Wood Frog (Rana sylvatica), dead female, possibly a victim of fungal disease, NY, USA
01240228
John Cancalosi / Wood Frog (Rana sylvatica), dead female, possibly a victim of fungal disease, NY, USA
Spotted Salamander (Ambystoma maculatum) on early spring migration to woodland pond, NY, USA,
01240212
John Cancalosi / Spotted Salamander (Ambystoma maculatum) on early spring migration to woodland pond, NY, USA,
Spring Peeper tree frog (Pseudacris crucifer / Hyla crucifer) male calling to attract female, vocal sac inflated, NY, USA
01240196
John Cancalosi / Spring Peeper tree frog (Pseudacris crucifer / Hyla crucifer) male calling to attract female, vocal sac inflated, NY, USA
American Toad (Bufo americanus), male calling to attract female, NY, USA
01240218
John Cancalosi / American Toad (Bufo americanus), male calling to attract female, NY, USA
Wood Frog (Rana sylvatica / Lithobates sylvaticus) three males attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
01240217
John Cancalosi / Wood Frog (Rana sylvatica / Lithobates sylvaticus) three males attempting to mate with a single female, males compete for mates by "scramble competition", NY, USA
American Toad (Bufo americanus), pair in amplexus, mating, NY, USA
01240201
John Cancalosi / American Toad (Bufo americanus), pair in amplexus, mating, NY, USA
American Toad (Bufo americanus), Male calling to attract female, vocal sac inflated, NY, USA
01240200
John Cancalosi / American Toad (Bufo americanus), Male calling to attract female, vocal sac inflated, NY, USA
Russell Laman watching a Pinewoods Treefrog (Hyla femoralis) on an outdoor sink in campground, Everglades National Park, Long Pine Key, Florida, USA. Model released. April 2008
01244553
Tim Laman / Russell Laman watching a Pinewoods Treefrog (Hyla femoralis) on an outdoor sink in campground, Everglades National Park, Long Pine Key, Florida, USA. Model released. April 2008
Couch's Spadefoot toad (Scaphiopus couchii) face portrait, Arizona, USA, captive
01208695
John Cancalosi / Couch's Spadefoot toad (Scaphiopus couchii) face portrait, Arizona, USA, captive
Boreal toad {Bufo boreas boreas} Colorado, USA
01187998
Shattil & Rozinski / Boreal toad {Bufo boreas boreas} Colorado, USA
Wood frog {Rana sylvatica} pair in amplexus, surrounded by spawn, New York, USA.
01149575
John Cancalosi / Wood frog {Rana sylvatica} pair in amplexus, surrounded by spawn, New York, USA.
Wood frog {Rana sylvatica} pair in amplexus, viewed from above, New York, USA.
01149574
John Cancalosi / Wood frog {Rana sylvatica} pair in amplexus, viewed from above, New York, USA.
Hellbender {Cryptobranchus alleganiensis} Pennsylvania, USA
01130380
John Cancalosi / Hellbender {Cryptobranchus alleganiensis} Pennsylvania, USA
Boy holding Pickerel frog {Rana palustris} USA.
01130224
John Cancalosi / Boy holding Pickerel frog {Rana palustris} USA.
Great plains toad, male calling {Bufo cognatus} Arizona, USA.
01130214
John Cancalosi / Great plains toad, male calling {Bufo cognatus} Arizona, USA.
Great plains toad {Bufo cognatus}, male calling to attract female, Arizona, USA
01063869
John Cancalosi / Great plains toad {Bufo cognatus}, male calling to attract female, Arizona, USA