Our verdict –and how to avoid the queues – at Sydney’s hottest new takeaway spot, where the sandwiches start at $3.

Tuna and swordfish have been known to take extreme plunges, but it was unclear whether these deep dives were for food, and to what extent the fishes' diet depends on prey in the twilight zone.

Tuna and swordfish have been known to take extreme plunges, but it was unclear whether these deep dives were for food, and to what extent the fishes’ diet depends on prey in the twilight zone.