The animals have flipperlike hind feet and gleaming coats of thick, dark-brown fur, whose value to hunters nearly led to the species' extinction.
(The animals; have; flipperlike hind feet and gleaming coats of thick, dark-brown fur) (thick, dark-brown fur; nearly led; to the species' extinction)
The animals thick, dark-brown fur
have nearly led
flipperlike hind feet and gleaming coats of thick, dark-brown fur
to the species' extinction