Chang has a special gene that stops tumors long before they format they have "at least 40 copies of the genes for proteins p53, which is well known for its cancer inhibition properties.
Elephants have special genes that stop tumor long before they form, they have "at least 40 copies of the gene for p53, a protein best known for its cancer-inhibiting properties.
Elephants have a special stop tumor gene, long before they form they have "at least 40 copies of the gene for a protein which sent p53 well-known features of inhibiting cancer