Before farming, people hunted animals and gathered plants (such as berries) for food: they're called hunter-gatherers.
They lived in whatever provided shelter: caves were a good candidate, but also huts made from whatver was available (mud, bamboo, wood, etc.).
"abnormal" means "not normal" - so it can mean "not standard" -therefore if someone is developing at a different rate than most of the people you could say that they are not developing in a standard way - so you could say that they are developing abnormally. The sentence is correct, although it might not be the best word to use.
A lovably unusual, creative person at this extreme end has
the potential to develop schizotypal personality disorder. The STPD is a mental
disorder in which makes an individual to have a thought disorder or have a
severe social anxiety in which he or she has unconventional beliefs.
Hartsfield-Jackson International Airport originally opened in 1926, now employs approximately 55,300 people including: transportation, concessionaire, security, federal government, and city employees.
