1 Pharmaceutical microbiology: The study of microorganisms that are related to the production of antibiotics, enzymes, vitamins,vaccines, and other pharmaceutical products and that cause pharmaceutical contamination and spoil. This field can be further classified into the following: 2  Plant microbiology and Plant pathology: The study of the interactions between microorganisms and plants and plant pathogens. 3  Soil microbiology: The study of those microorganisms that are found in soil.
According to National Geographic, the average lifespan for a giraffe in the wild is 25 years. Giraffes have been known to live longer when in captivity in zoos.
Last year, a Masai giraffe at the Los Angeles Zoo died shortly after a stillborn calf was removed. Masai giraffes typically live into their late teens to early 20s. Females can give birth as young as 4 and gestation lasts, on average, about 15 months.