This definition can be contrasted with that proposed by life-span developmental psychologists: Development is a life-long process beginning at conception and ending at death (Honzik, 1984, p. 309). Development is thus extended to include the whole of life.
A cockroache can live up to 10 days without its head. In fact it doesn't die of suffication but of dehydration.  a cockroach can live up to a week without it's head because â¦it's brain is in its body. 1 person found this useful.
How long is the life span of a cockatiel?     On average, cockatiels live 15 - 20 years. With poor care, such as uncleaned cages, unrestricted breeding, and poor feeding the lifespan is only 1-5 years. With exâ¦cellent care, they can live 25 years.