plant cell systems infected with recombinant virus expression vectors (e.g., cauliflower mosaic virus, CaMV; tobacco...non-human species (donor antibody) such as mouse, rat or rabbit having the desired specificity, affinity, and cap...
Northern cardinals live for more than 7 years on average.
Hi! I too have heard various opinions about the lifespan of cockatiels. Most say that their *average* lifespan is about 15-20 years. I have several friends who have tiels that are over 25 and still very healthy. Cockatiels can live to be 35 or even older, and are very hardy, sweet birds. They live long lives for a creature so tiny, as most parrots do. Your sweetie may not be so young anymore, but hopefully, with lots of love and a good diet, hopefully he should still have some years left with you.