Now that spring has arrived, the hare's winter white pelage (fur) is turning to a mottled grayish-brown and white, blending well with their changing environment.
(that spring; has arrived; T:Now) (the hare's winter white pelage; is turning; to a mottled grayish-brown and white; T:Now that spring has arrived)
that spring the hare's winter white pelage
has arrived is turning
T:Now
to a mottled grayish-brown and white T:Now that spring has arrived