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
Gorilla gorilla gorilla. Photo: Rick Murphy. Mountain gorillas live in age-graded groups of, on average, 9.2 individuals, with one adult male (though there may be more than one), multiple adult females, and their offspring (Watts 1996; Doran & McNeilage 1997; Robbins 2001).