The definition of drastic is something radical or extreme. When you have very long hair and you suddenly shave your head, this is an example of a change that would be described as drastic. YourDictionary definition and usage example.
4.) Silverback Gorillas Can Live Up To 40 Years. The average lifespan of a gorilla is from 35 to 40 years of age, but it has been recorded that gorillas in captivity (such as a zoo) can live up to 50 years. One gorilla in particular is known as the oldest living gorilla in the world at age 59. So cool. 5.) All GorillaSpecies Are Endangered
Because of their great geographical separation, about 750 km (466 mi), western and eastern gorillas live in dramatically different habitats (Tutin & Vedder 2001). Even within-species habitat variation is quite great, from swamp to montane forest. Eastern gorillas live in submontane and montane forests from 650 to 4000 m (2132 to 13,123 ft) (Butynski 2001; Sarmiento 2003).