Pteromys volans orii Flying Squirrel Cuckold

When female Pteromys volans orii squirrels go into estrus, there is usually a primary male with her. He fends off challengers and does his best to monopolize copulation opportunities. Females will mate with other males when the opportunity arises however. Here, the female has snuck out to copulate with another male. The primary male has just realized what is happening and has rushed out of the den to confront the interloper.

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Image Size: 6234x4156 / 74.5MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Mammal Squirrel Animalia Chordata Mammalia Rodentia Sciuridae Pteromys volans orii Eurasian Small Flying Squirrel Ezo Momonga Japanese Dwarf Flying Squirrel Russian Flying Squirrel Siberian Flying Squirrel Reproduction Copulation Nocturnal Pacific Japan Hokkaido
Contained in galleries: Japan

When female Pteromys volans orii squirrels go into estrus, there is usually a primary male with her. He fends off challengers and does his best to monopolize copulation opportunities. Females will mate with other males when the opportunity arises however. Here, the female has snuck out to copulate with another male. The primary male has just realized what is happening and has rushed out of the den to confront the interloper.