Donkey
Donkeys can interbreed with other members of the family Equidae, and are commonly interbred with horses. The hybrid between a jack and a mare is a mule, valued as a working and riding animal in many countries. Some large donkey breeds such as the Asino di Martina Franca, the Baudet de Poitou and the Mammoth Jack are raised only for mule production. The hybrid between a stallion and a jenny is a hinny, and is less common. Like other inter-species hybrids, mules and hinnies are usually sterile. Donkeys can also breed with zebras in which the offspring is called a zonkey (among other names).
Egernia
It is the namesake genus of the "Egernia" genus-group, which also includes the Solomon Islands skink ("Corucia"), "Cyclodomorphus" and the blue-tongued skinks ("Tiliqua"). In some older works, it is considered closely related to "Mabuya", but even among the subfamily Lygosominae this genus does not seem to be particularly closely related and would—were the genus-groups treated at the rarely used rank of infrafamily—certainly constitute an infrafamily of its own. On the other hand, the enigmatic crocodile skinks ("Tribolonotus") might be a very basal member of the "Egernia" genus-group.