• Results for
    • Sexual Morphism
  • (10)
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.
Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)  -  Dietmar Nill
01189856
Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
Greenbottles (Lucilia Sp) mating pair showing colour variation, Ladywell Fields, Lewisham, London, England, UK. April  -  Rod Williams
01492371
Rod Williams / Greenbottles (Lucilia Sp) mating pair showing colour variation, Ladywell Fields, Lewisham, London, England, UK. April
Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)  -  Dietmar Nill
01189858
Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)  -  Dietmar Nill
01189857
Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)  -  Dietmar Nill
01189855
Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
Keeled slug {Limax sp} pair mating, Wales, UK  -  Dave Bevan
01178266
Dave Bevan / Keeled slug {Limax sp} pair mating, Wales, UK
Mallard pair on frozen lake. (Anas platyrhynchos) National Elk Refuge, Wyoming, USA.  -  TOM MANGELSEN
01013763
TOM MANGELSEN / Mallard pair on frozen lake. (Anas platyrhynchos) National Elk Refuge, Wyoming, USA.
Sclater's black lemur, male female pair, colour variation {Lemur macaco flavifrons}  -  Lynn M Stone
21109403
Lynn M Stone / Sclater's black lemur, male female pair, colour variation {Lemur macaco flavifrons}
Ten-spot ladybird (Adalia 10-punctata), mating pair showing variation in colour and pattern, UK  -  Premaphotos
01193569
Premaphotos / Ten-spot ladybird (Adalia 10-punctata), mating pair showing variation in colour and pattern, UK