Macropod hybrids

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Hybrid (Juvenile) of Red Kangaroo and Great Grey Kangaroo, Rothschild Museum, Tring

 

Macropod hybrids are hybrids of animals within the family Macropodidae. Several macropod hybrids have been experimentally bred, including:

Male Female Result
Eastern Wallaroo,
Macropus robustus
Red Kangaroo,
M. rufus
Infertile female1
Swamp Wallaby,
Wallabia bicolor
 Red-necked Wallaby,
M. rufogriseus
Sterile male2
Agile Wallaby,
M. agilis
Red-necked Wallaby,
M. rufogriseus
Sterile male2
Tammar Wallaby,
M. eugenii
Black-striped Wallaby,
M. dorsalis
Sterile male2
Western Grey Kangaroo,
M. fuliginosus
Eastern Grey Kangaroo,
M. giganteus
Sterile male and fertile female
Red Kangaroo,
M. rufus3
Eastern Grey Kangaroo,
M. giganteus
Tammar Wallaby,
M. eugenii
Parma Wallaby,
M. parma
Tammar Wallaby,
M. eugenii
Pademelon,
Thylogale sp.

1. May have been so poorly fertile as to be considered sterile
2. Although the males had testes, they did not produce sperm and some were found to have Y-chromosome abnormalities.
3. In-vitro fertilization used

Some hybrids between similar species have been achieved by housing males of one species and females of the other together to limit the choice of mate.  To create a "natural" macropod hybrid, young animals of one species have been transferred to the pouch of another so as to imprint into them the other species. In-vitro fertilization has also been used and the fertilized egg implanted into a female of either species.[1]

References[edit]

  • Poole, WE "Reproduction in the Two Species of Grey Kangaroos, Macropus Giganteus Shaw and M. Fuliginosus (Desmarest). Ii. Gestation, Parturition and Pouch Life." Australian Journal of Zoology 23(3) 333 - 353 (1975)
  • MJ Smith, DL Hayman and RM Hope, "Observations on the chromosomes and reproductive systems of four macropodine interspecific hybrids" Australian Journal of Zoology 27(6) 959 - 972 (1979)