Hybrids

Nature

Hybrid may refer to:

Source: Wikipedia

Incidence 
Scientists have created laboratory mice with tiny human organ structures - lungs, intestines, pancreases, lymph nodes, thymuses, livers and immune systems. The purpose is to study the viruses of human diseases in living human tissues. The mouse-human hybrid has been used to study AIDS virus, cancer viruses and cytomegalovirus.
Type 
(F) Fuzzy exceptional problems