So you are thinking maybe a family pet or two is a good idea. Before you make a final decision, consider some facts.
The average 50-pound dog will live 10-12 years
“The estimated average life span of indoor-only cat is 15-18 years but can be as long as 20 to 25 years
The typical goldfish lives anywhere between 5 days and 25 years.
THE AVERAGE BOA CONSTRICTOR LIVES 20-30 years but there is a boa that has been 40 years old
Read more: http://wiki.answers.com/Q/What_is_the_life_span_of_a_boa_constrictor#ixzz1yMSNOQtQ
Read more: http://wiki.answers.com/Q/What_is_the_average_life_span_of_a_goldfish#ixzz1yMS6BCU5
Read more: http://wiki.answers.com/Q/What_is_the_life_span_of_an_ordinary_house_cat#ixzz1yMRcDePs
In Adventures in single parenting I devote a chapter on discussing pets, how to care for them and what to expect. Crazaberamer