One thing is certain: ecological changes are inevitable when an entire class of animals drops out of the food chain over a large region.
(an entire class of animals; drops; ) (ecological changes; are; inevitable; T:when an entire class of animals drops out of the food chain over a large region) Context(ecological changes are,List([22, 44))):(One thing; is; certain)
ecological changes are,List([22, 44))
an entire class of animals ecological changes One thing
drops are is
inevitable T:when an entire class of animals drops out of the food chain over a large region
certain