[00:01.040]--- Lesson 90 What's for supper?
[00:05.840]--- First listen and then answer the question.
[00:11.800]--- What kind of fish are they?
[00:16.840]Fish and chips has always been a favourite dish in Britain,
[00:21.800]but as the oceans have been overfished, fish has become more and more expensive.
[00:28.120]So it comes as a surprise to learn that giant fish are terrifying the divers on North Sea oil rigs.
[00:36.960]Oil rigs have to be repaired frequently and divers, who often have to work in darkness a hundred feet under water,
[00:46.920]have been frightened out of their wits by giant fish bumping into them as they work.
[00:54.720]Now they have had special cages made to protect them from these monsters.
[01:00.560]The fish are not sharks or killer whales,
[01:04.400]but favourite eating varieties like cod and skate which grow to unnatural sizes, sometimes as much as twelve feet in length.
[01:16.240]Three factors have caused these fish to grow so large:
[01:20.720]the warm water round the hot oil pipes under the sea;
[01:25.720]the plentiful supply of food thrown overboard by the crews on the rigs;
[01:31.480]the total absence of fishing boats around the oil rigs.
[01:35.680]As a result, the fish just eat and eat and grow and grow in the lovely warm water. Who eats who?
[01:46.160]--- end