They fenced the compound, which over the years has housed facilities to study many animal species, such as reindeer, arctic hare, bears and ground squirrels ( see map ).
(They; fenced; the compound, which over the years has housed facilities) (the compound; has housed; facilities to study many animal species, such as reindeer, arctic hare, bears and ground squirrels ( see map ); T:over the years) (facilities; to study; many animal species, such as reindeer, arctic hare, bears and ground squirrels ( see map)
They the compound facilities
fenced has housed to study
the compound, which over the years has housed facilities
facilities to study many animal species, such as reindeer, arctic hare, bears and ground squirrels ( see map ) T:over the years
many animal species, such as reindeer, arctic hare, bears and ground squirrels ( see map