5. A goat and a sheep

In general, people think a goat and a sheep are very similar, however they have different amounts of chromosomes.

The offspring is called a geep or a shoat and they are very rare. That is because most of the hybrids are stillborn.

The hybrid resulted from the pairing of a sheep and a goat should not be mistaken for a goat-sheep chimera, the difference is the chimera is created in labs. The geep usually has the face and legs of a goat, however it is covered in wool.

Fun fact: In Northern Ireland a shoat named Butterfly was unexpectedly born at a farm.