• Results for
    • Colour Dimorphism
  • (381)
Eclectus parrot (Eclectus roratus) female perched in a tree, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.  -  Steven David Miller
01602464
Steven David Miller / Eclectus parrot (Eclectus roratus) female perched in a tree, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.
Black grouse (Lyrurus tetrix) mating in snow, Utajarvi, Finland, May.  -  Markus Varesvuo
01498210
Markus Varesvuo / Black grouse (Lyrurus tetrix) mating in snow, Utajarvi, Finland, May.
Bare-faced Curassow (Crax fasciolata) male and female, Near Araras Lodge, Mato Grosso, Northern Pantanal, Brazil, South America.  -  Nick Garbutt
01493040
Nick Garbutt / Bare-faced Curassow (Crax fasciolata) male and female, Near Araras Lodge, Mato Grosso, Northern Pantanal, Brazil, South America.
Asian paradise-flycatcher (Terpsiphone paradisi) pair perched on branch, Shanyang town, Gutian County, Hubei province, China.  -  Dong Lei
01492693
Dong Lei / Asian paradise-flycatcher (Terpsiphone paradisi) pair perched on branch, Shanyang town, Gutian County, Hubei province, China.
Black howler monkeys (Alouatta caraya) male and two females calling from tree, captive, Apenheul Park, Netherlands.  -  Juan  Carlos Munoz
01448823
Juan Carlos Munoz / Black howler monkeys (Alouatta caraya) male and two females calling from tree, captive, Apenheul Park, Netherlands.
Cavalier King Charles Spaniels, ruby and tricolour, sitting in snow.  -  Petra Wegner
01366645
Petra Wegner / Cavalier King Charles Spaniels, ruby and tricolour, sitting in snow.
Eclectus Parrot (Eclectus roratus) courtship behaviour in rainforest, Cape York Peninsula, North Queensland, Australia, captive  -  Konrad Wothe
01356707
Konrad Wothe / Eclectus Parrot (Eclectus roratus) courtship behaviour in rainforest, Cape York Peninsula, North Queensland, Australia, captive
Eclectus Parrot (Eclectus roratus) pair in rainforest, female on right, Cape York Peninsula, North Queensland, Australia, captive  -  Konrad Wothe
01356706
Konrad Wothe / Eclectus Parrot (Eclectus roratus) pair in rainforest, female on right, Cape York Peninsula, North Queensland, Australia, captive
Group portrait of three Chihuahua puppies, sitting on white towels  -  Aflo
01326928
Aflo / Group portrait of three Chihuahua puppies, sitting on white towels
Two Cavalier King Charles Spaniels, blenheim and tricolour coated, sitting wearing reindeer antlers  -  Petra Wegner
01317019
Petra Wegner / Two Cavalier King Charles Spaniels, blenheim and tricolour coated, sitting wearing reindeer antlers
Five Cavalier King Charles Spaniel sitting, black-and-tan, tricolour, blenheim and ruby coated, sitting in autumn leaves  -  Petra Wegner
01316932
Petra Wegner / Five Cavalier King Charles Spaniel sitting, black-and-tan, tricolour, blenheim and ruby coated, sitting in autumn leaves
Two Miniature Schnauzers, black-silver and pepper-and-salt coated, sitting in autumn foliage  -  Petra Wegner
01316878
Petra Wegner / Two Miniature Schnauzers, black-silver and pepper-and-salt coated, sitting in autumn foliage
Cavalier King Charles Spaniel, ruby, black-and-tan, tricolour and blenheim, sitting in line on beach, panting  -  Petra Wegner
01214691
Petra Wegner / Cavalier King Charles Spaniel, ruby, black-and-tan, tricolour and blenheim, sitting in line on beach, panting
Lion-maned Dwarf Domestic Rabbits, 13 weeks, Dwarf Rabbit, and Satin Lop-eared Dwarf Rabbit, 8 weeks  -  Petra Wegner
01214589
Petra Wegner / Lion-maned Dwarf Domestic Rabbits, 13 weeks, Dwarf Rabbit, and Satin Lop-eared Dwarf Rabbit, 8 weeks
Bluebells (Hyacinthoides non-scripta) white morph amongst blue flowers, Belgium  -  Philippe Clement
01209227
Philippe Clement / Bluebells (Hyacinthoides non-scripta) white morph amongst blue flowers, Belgium
Bluebells (Hyacinthoides non-scripta); white form next to normal blue form, North Somerset, UK  -  Michael Hutchinson
01189461
Michael Hutchinson / Bluebells (Hyacinthoides non-scripta); white form next to normal blue form, North Somerset, UK
Domestic cat (Felis catus) 8-week-old kittens  -  Jane Burton
01138534
Jane Burton / Domestic cat (Felis catus) 8-week-old kittens
Peppered moth {Biston betularia} normal and melanic forms on birch trunk. UK.  -  Kim Taylor
01133129
Kim Taylor / Peppered moth {Biston betularia} normal and melanic forms on birch trunk. UK.
Fox squirrel, black form {Sciurus niger} Texas, USA.  -  Rolf Nussbaumer
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Rolf Nussbaumer / Fox squirrel, black form {Sciurus niger} Texas, USA.
Common buzzard, white morph {Buteo buteo} Switzerland.  -  Rolf Nussbaumer
01124741
Rolf Nussbaumer / Common buzzard, white morph {Buteo buteo} Switzerland.
Vermilion flycatcher pair at nest feeding chicks, Texas, USA {Pyrocephalus rubinus}  -  Rolf Nussbaumer
01124660
Rolf Nussbaumer / Vermilion flycatcher pair at nest feeding chicks, Texas, USA {Pyrocephalus rubinus}
Adder {Vipera berus} melanic / black form female with normal morph young. Dorset, UK  -  Tony Phelps
01086891
Tony Phelps / Adder {Vipera berus} melanic / black form female with normal morph young. Dorset, UK
White lipped snails on moss (Cepaea hortensis) showing variation in pattern on shell within the species, UK.  -  PREMAPHOTOS
01036296
PREMAPHOTOS / White lipped snails on moss (Cepaea hortensis) showing variation in pattern on shell within the species, UK.
Grey wolves showing fur colour variation. (Canis lupus)  -  Tom Vezo
01010874
Tom Vezo / Grey wolves showing fur colour variation. (Canis lupus)
Kelp greenling (Hexagrammos decagrammus) male, Browning Pass, Queen Charlotte Strait, British Columbia, Canada. September. The males and females are very different in appearance and were originally de...  -  David Hall
01647861
David Hall / Kelp greenling (Hexagrammos decagrammus) male, Browning Pass, Queen Charlotte Strait, British Columbia, Canada. September. The males and females are very different in appearance and were originally de...
Kelp greenling (Hexagrammos decagrammus) male guarding at least three clusters of dark brown eggs, located just below where he is perched. Browning Pass, Queen Charlotte Strait, British Columbia, Cana...  -  David Hall
01647860
David Hall / Kelp greenling (Hexagrammos decagrammus) male guarding at least three clusters of dark brown eggs, located just below where he is perched. Browning Pass, Queen Charlotte Strait, British Columbia, Cana...
RF - Sand lizard (Lacerta agilis) male female pair, head to head, the Netherlands. June. (This image may be licensed either as rights managed or royalty free.)  -  Edwin Giesbers
01645900
Edwin Giesbers / RF - Sand lizard (Lacerta agilis) male female pair, head to head, the Netherlands. June. (This image may be licensed either as rights managed or royalty free.)
Red deer (Cervus elaphus) silhouetted stag bellowing during rut in grassland, doe in background. Richmond Park, London, England, UK. October  -  Edwin Giesbers
01633855
Edwin Giesbers / Red deer (Cervus elaphus) silhouetted stag bellowing during rut in grassland, doe in background. Richmond Park, London, England, UK. October
Eclectus parrot (Eclectus roratus) male perched on a tree vine, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.  -  Steven David Miller
01602467
Steven David Miller / Eclectus parrot (Eclectus roratus) male perched on a tree vine, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.
Eclectus parrot (Eclectus roratus) male perched on a tree vine, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.  -  Steven David Miller
01602466
Steven David Miller / Eclectus parrot (Eclectus roratus) male perched on a tree vine, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.
Eclectus parrot (Eclectus roratus) female calling, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.  -  Steven David Miller
01602465
Steven David Miller / Eclectus parrot (Eclectus roratus) female calling, The Wildlife Habitat Zoo, Port Douglas, Queensland, Australia. August. Captive.
A female Cruiser butterfly (Vindula arsinoe) resting, Cairns Botanical Gardens, Queensland, Australia. Captive.  -  Steven David Miller
01602462
Steven David Miller / A female Cruiser butterfly (Vindula arsinoe) resting, Cairns Botanical Gardens, Queensland, Australia. Captive.
A male Cruiser butterfly (Vindula arsinoe) resting, Cairns Botanical Gardens, Queensland, Australia. Captive.  -  Steven David Miller
01602461
Steven David Miller / A male Cruiser butterfly (Vindula arsinoe) resting, Cairns Botanical Gardens, Queensland, Australia. Captive.
Flame anthias (Pseudanthias ignitus), male displaying fins whilst courting female. South Ari Atoll, Maldives. Indian Ocean.  -  Alex Mustard
01601451
Alex Mustard / Flame anthias (Pseudanthias ignitus), male displaying fins whilst courting female. South Ari Atoll, Maldives. Indian Ocean.
Clarion Lizard (Urosaurus clarionensis) displaying, IUCN Vulnerable, Clarion Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Soc...  -  Claudio  Contreras
01565344
Claudio Contreras / Clarion Lizard (Urosaurus clarionensis) displaying, IUCN Vulnerable, Clarion Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Soc...
Red-legged honeycreeper (Cyanerpes cyaneus) male and female, northern Costa Rica.  -  Suzi Eszterhas
01536418
Suzi Eszterhas / Red-legged honeycreeper (Cyanerpes cyaneus) male and female, northern Costa Rica.
Flame anthias (Pseudanthias ignitus) displaying to the more drab female (above) during courtship in the evening. Similan Islands, Thailand. Andaman Sea, Indian Ocean.  -  Alex Mustard
01534382
Alex Mustard / Flame anthias (Pseudanthias ignitus) displaying to the more drab female (above) during courtship in the evening. Similan Islands, Thailand. Andaman Sea, Indian Ocean.
Blue-eyed / Sclater's black lemur (Eulemur flavifrons) male and female (on right) captive, endemic to Madagascar., Critically Endangered.  -  Edwin  Giesbers
01528597
Edwin Giesbers / Blue-eyed / Sclater's black lemur (Eulemur flavifrons) male and female (on right) captive, endemic to Madagascar., Critically Endangered.
Green lizard (Lacerta viridis) pair on rocks during courtship, Hungary May.  -  Dave Bevan
01516593
Dave Bevan / Green lizard (Lacerta viridis) pair on rocks during courtship, Hungary May.
Ringlet butterflies (Aphantopus hyperantus) male on left, feeding on bramble blossom Brockley cemetery, Lewisham, South East London, England, UK, June.  -  Rod Williams
01499290
Rod Williams / Ringlet butterflies (Aphantopus hyperantus) male on left, feeding on bramble blossom Brockley cemetery, Lewisham, South East London, England, UK, June.
Mallard (Anas platyrhynchos) male and female taking off, Camargue, France, May  -  Loic  Poidevin
01491934
Loic Poidevin / Mallard (Anas platyrhynchos) male and female taking off, Camargue, France, May
Mallard (Anas platyrhynchos) male and female in flight, Camargue, France, May  -  Loic  Poidevin
01491929
Loic Poidevin / Mallard (Anas platyrhynchos) male and female in flight, Camargue, France, May
Pair of Painted frogfish (Antennarius pictus) the smaller male is guarding the female prior to mating. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.  -  Alex Mustard
01473154
Alex Mustard / Pair of Painted frogfish (Antennarius pictus) the smaller male is guarding the female prior to mating. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.
Striated frogfish (Antennarius striatus) breeding pair, South Florida, USA.  -  Michele  Westmorland
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Michele Westmorland / Striated frogfish (Antennarius striatus) breeding pair, South Florida, USA.
Adult female (right) and male (left) Caatinga Horned Frogs (Ceratophrys joazeirensis) endemic in Brazil. Captive.  -  Visuals Unlimited
01440814
Visuals Unlimited / Adult female (right) and male (left) Caatinga Horned Frogs (Ceratophrys joazeirensis) endemic in Brazil. Captive.
Golden hooded Tanager (Tangara larvata) male (yellow, black, blue) and female (yellow), Costa Rica  -  Visuals Unlimited
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Visuals Unlimited / Golden hooded Tanager (Tangara larvata) male (yellow, black, blue) and female (yellow), Costa Rica
Agama (Agama agama) male and female, around Twyfelfontein, Namibia  -  Denis-Huot
01425337
Denis-Huot / Agama (Agama agama) male and female, around Twyfelfontein, Namibia
Sexually dimorphic St. Mark's fly / March fly (Bibio marci) pair mating; males have much larger eyes and clear wings, Wiltshire garden, UK, May.  -  Nick Upton
01419741
Nick Upton / Sexually dimorphic St. Mark's fly / March fly (Bibio marci) pair mating; males have much larger eyes and clear wings, Wiltshire garden, UK, May.
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