Having survived all the hazards of infancy to reach maturity (this may take from 15 to 50 years for a green turtle) the adult animal has the advantage of size against most predators, but can fall victim to sharks, and I have seen turtles with a missing back flipper, probably due to shark attack.
(I; have seen; turtles) (all the hazards of infancy; to reach; maturity) (this; may take; from 15 to 50 years for a green turtle) (the adult animal; has; the advantage of size against most predators)
I all the hazards of infancy this the adult animal
have seen to reach may take has
turtles
maturity
from 15 to 50 years for a green turtle
the advantage of size against most predators