Lepidoptera (butterflies and moths) are the only insects that have scaly wings. The wings are attached to the butterfly's thorax (mid-section). Veins support the delicate wings and nourish them with blood. Butterflies can only fly if their body temperature is above 86 degrees.
All of the members of Leonard's family are accomplished scientists, except for his younger brother Michael, who is a tenured law professor at Harvard University. Leonard's mother, Dr. Beverly Hofstadter, is a psychiatrist and neuroscientist. She has a personality almost identical to Sheldon's, including strict speech patterns, lack of social conventions, and attention to detail, and she is principally responsible for Leonard's difficult childhood.
Howard Wolowitzâs unnamed mother on the Emmy-winning sitcom The Big Bang Theory never appeared on camera; she just screamed at her son from other rooms in their house or over the phone. Carol Ann Susi, the actress who played Mrs. Wolowitz, died in November, and her last episode aired the same month.