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.
However, births in the wild usually happen during the dry season and births in captivity can happen all year round. Giraffes reach sexual maturity in captivity at around 3 â 4 years old, however, in the wild, males do not usually breed until they are 6 â 7 years old. In contrast to the male breeding age, females must be physically larger to carry offspring.