"Some creatures can outlive humans by centuries. Readers will learn about these extreme examples of longevity in the animal kingdom, how aging happens, and what genes help animals to live so long."--
Cystic fibrosis is a genetic metabolic disorder that affects the respiratory and digestive systems. Although the mortality rate for infants and children with cystic fibrosis used to be very high, more than half of all patients with cystic fibrosis now sur