New Scientist: Could Australia have had schools of mysterious, technicolour purple jellyfish swimming off its shores all along without anybody noticing? After one such creature, previously unknown in Australia - and probably to science - washed up on a Queensland coast last week, jellyfish scientist Lisa-ann Gershwin has received a string of reported sightings dating back to 2008.
With its metre-long arms and a huge purple bell, Gershwin from the CSIRO, Australia's national research agency, in Brisbane, says...