Sentence:  On entering the Aquarium Building, I bumped into John Janssen, a biologist studying the behavior and physiology of Antarctic fish, and now a professor of biology at the University of Wisconsin–Milwaukee. John stood near a large circular seawater tank containing a school of "<WSD>borks</WSD>" ("Pagothenia borchgrevinki"), silvery, foot-long, trout-shaped Antarctic fish that feed on plankton. The majority of Antarctic fish live on the seafloor, but <WSD>borks</WSD> live in the water column, hiding from sea predators in the cracks and crevices of the sea ice. 
Meaning of the word marked with <WSD> tags:  The (bald notothen) or (bald rockcod) ((ver=171018)), a species of (cod icefish) ((ver=171018)) native to the Southern Ocean.