Environmentalist is often a term used to describe impassioned tree huggers but the word literally means someone who studies the environment so environmentalists can be scientists as well. An ecologist studies the environment and an environmentalist wants to save the environment.
NEIL DEGRASSE TYSON: Just in case our human bodies can't live forever, this computer scientist is trying to design virtual replicas, avatars, that will. JASON LEIGH: An avatar is an instance of yourself that's digital, that will never die. NEIL DEGRASSE TYSON: Jason knows he can't really make you live forever, but he can use computers to preserve your thoughts, memories and even the way you look, for eternity.
it seems like many people have their parakeets/budgies for 5-7 years, maybe 10 if they are lucky. But it seems like they can live up to 15 years if they are healthy, eat a good diet (like harrison'spellets and some seeds & veggies/fruits), and live in an environment free of scented sprays, candles, and other irritants to the lungs. (BTW, those are not healthy for people to breathe either) 20-25 years.