Monogamous Animals

While rarer among animals than in humans, monogamy is not uncommon. Around 90% of all birds form a monogamous relationship and sometimes mate for life. This behavior is attributed to the tedious courtship period involved in mate selection. Once a suitable pair bonds, they tend to stay together as they gain experience raising offspring with each mating period. Examples include the black vulture – where the entire flock will attack a single member if they display “cheating” behavior, and swans – who sometimes form bonds before sexual maturity and stay together throughout their lives.

Monogamy is seldom seen in other animals. About 5% of mammals, like Eurasian beavers, gibbons, and marmosets, form strong bonds with a single partner. Other than birds and mammals, hawksbill sea turtles, some seahorses, and even parasitic flatworms display monogamous behavior.

List of Animals that are monogamous


  • Agile Gibbon
  • Black-headed Marmoset
  • Black-tailed Marmoset
  • Black-tufted Marmoset
  • Black Crested Gibbon
  • Bornean White-bearded Gibbon
  • Buffy-headed Marmoset
  • Buffy-tufted Marmoset
  • Common Marmoset
  • Coyote
  • Dik-Dik
  • Eastern Black Crested Gibbon
  • Eastern Grey Gibbon
  • Eastern Hoolock Gibbon
  • Emilia’s Marmoset
  • Eurasian Beaver
  • Gold-and-white Marmoset
  • Gray Fox
  • Gray Wolf
  • Hainan Black Crested Gibbon
  • Hershkovitz’s Marmoset
  • Kloss’s Gibbon
  • Lar Gibbon
  • Marca’s Marmoset
  • Maués Marmoset
  • Müller’s Gibbon
  • Munduruku Marmoset
  • Northern Buffed-cheeked Gibbon
  • Northern White-cheeked Gibbon
  • Oldfield Mice
  • Owl Monkey
  • Pileated Gibbon
  • Prarie Vole
  • Pygmy Marmoset
  • Red Fox
  • Rio Acari Marmoset
  • Rondon’s Marmoset
  • Roosmalens’ Dwarf Marmoset
  • Santarem Marmoset
  • Satéré Marmoset
  • Siamang
  • Silvery Gibbon
  • Silvery Marmoset
  • Skywalker Hoolock Gibbon
  • Southern White-cheeked Gibbon
  • Titi Monkey
  • Western Grey Gibbon
  • Western Hoolock Gibbon
  • White Marmoset
  • White-headed Marmoset
  • Wied’s Marmoset
  • Yellow-cheeked Gibbon



  • Hawksbill Sea Turtle
  • Shingleback Skink


  • Mantis Shrimp
  • Pacific Striped Octopus
  • Parasitic Flatworm


  • Barbour’s Seahorse
  • Common Seahorse
  • Great Seahorse
  • French Angelfish
  • Lined Seahorse
  • Narrow-bellied Seahorse
  • New Holland Seahorse
  • Short-snouted Seahorse
  • Tiger Snout Seahorse