Inter Press Service: In early July, whales from the world’s largest population of humpbacks began arriving in the warm, subtropical waters off Australia’s north-west coast to breed and nurse their young. From May each year, some 22,000 humpbacks make the pilgrimage up Australia’s west coast from their Antarctic feeding grounds before beginning the return journey in September. The whales, which usually grow to between 12 and 16 metres when mature, constitute just a tiny fraction of the wide variety …