Zárate is the first person to have been identified with Majewski osteodysplastic primordial dwarfism type II.

According to an 1894 article in Strand Magazine, Zárate achieved her full growth by the age of one year.

[6] At age twelve, Zárate moved from Mexico over to the United States, where she was exhibited for her small stature.

[7] In 1889 she was billed in The Washington Post as the "marvelous Mexican midget" and described as "a tiny but all powerful magnet to draw the public.

[9] After her circus train became stranded in the snowy Sierra Nevada mountains, Zárate died of hypothermia in 1890.