Macropod hybrid

Macropod hybrids are hybrids of animals within the family Macropodidae, which includes kangaroos and wallabies. Several macropod hybrids have been experimentally bred, including:

A hybrid (juvenile) of a red kangaroo and an eastern grey kangaroo, Rothschild Museum, Tring

Male	Female	Result
Eastern wallaroo, Osphranter robustus robustus	Red kangaroo, O. rufus	Infertile female^*
Swamp wallaby, Wallabia bicolor	Red-necked wallaby, M. rufogriseus	Sterile male^†
Agile wallaby, M. agilis	Red-necked wallaby, M. rufogriseus	Sterile male^†
Tammar wallaby, M. eugenii	Black-striped wallaby, M. dorsalis	Sterile male^†
Western grey kangaroo, M. fuliginosus	Eastern grey kangaroo, M. giganteus	Sterile male and fertile female
Red kangaroo, O. rufus^‡	Eastern grey kangaroo, M. giganteus
Tammar wallaby, M. eugenii	Parma wallaby, M. parma
Tammar wallaby, M. eugenii	Pademelon, Thylogale species

* May have been so poorly fertile as to be considered sterile
† Although the males had testes, they did not produce sperm and some were found to have Y-chromosome abnormalities.
‡ 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 a 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]^{[unreliable source]}

References

^ "Hybrid Marsupials". MessyBeast.com.

Poole, W. E. (1975). "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. doi:10.1071/ZO9750333.
Smith, M. J.; Hayman, D. L.; Hope, R. M. (1979). "Observations on the chromosomes and reproductive systems of four macropodine interspecific hybrids". Australian Journal of Zoology. 27 (6): 959–972. doi:10.1071/ZO9790959.

[messybeast-1] "Hybrid Marsupials". MessyBeast.com.

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