Some can, and some female hybrids have been fertile, but no males have been fertile. read more
The hybrid embryos can be implanted into a female of either species. Note: A wallaroo is a macropod, intermediate in size between kangaroos and wallabies. The name "wallaroo" is a portmanteau of wallaby and kangaroo, but the walleroo is not a hybrid. Textual content is licensed under the GFDL. read more
Kangaroos and wallabies are very similar marsupials that belong to the same family (Macropodidae) and genus (Macropus). Their native territories often overlap. Wallabies are generally much smaller than kangaroos and have a color pattern that is much more varied. read more
Kangaroos, on the other hand, can grow to heights of 8 feet (2.1 meters) and weigh as much as 200 pounds (91 kg) [source: Microsoft Encarta]. Another simple way to tell a wallaby and a kangaroo apart is by their coloring. read more