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UID:Indybay-18631876
SEQUENCE:18692897
CREATED:20091209T033100Z
DESCRIPTION: \nThe evening begins with an optional social hour and pot luck supper at 
 6:30 pm,\nfollowed by the film at 7:30 pm, followed by a discussion at the 
 end of the film.\n \nCORAL SEAS\n \nThe coral reefs are so crowded that 
 they play host to a perpetual battle for space, even among the coral 
 itself.  A coral starts life as a larva that becomes a polyp.  Having 
 multiplied, it hardens into a limestone skeleton and grows to form a reef.  
 As the community flourishes, animals develop relationships with one another 
 and such a place can feature a huge variety of ocean life.  Although corals 
 feed nocturnally on plankton, sunlight is vital because even though they 
 are animals, each contains millions of single-celled algae.  This in turn 
 is the favored sustenance of the humphead parrotfish, whose jaws are so 
 powerful that it erodes much of the reef into fine sand.  Algae also grows 
 on the top of the reef and a battle for grazing rights between shoals of 
 powder blue and convict tangs is shown, the former being initially 
 overwhelmed by the latter's weight of numbers before regaining the upper 
 hand.  The night-time hunting of a marbled ray alerts other predators and a 
 group of whitetip reef sharks moves in, from which few are safe.  Several 
 breeding strategies are examined, including the acrobatic habits of brown 
 surgeonfish and the colorful courtship of the flamboyant cuttlefish.  
 Humpback whales are visitors to the reef and males establish their 
 seniority by the loudness and strength of their song.  Being fixed to the 
 seabed, corals must synchronize their reproduction with lunar phases and 
 the rising spring temperatures. \n\nWheelchair accessible around the corner 
 at  411  28th  Street\n \n$5 donations are accepted\n\n 
 https://www.indybay.org/newsitems/2009/12/08/18631876.php
SUMMARY:Coral Seas
LOCATION:Humanist Hall\n390  27th  Street\nmidtown Oakland, between Telegraph and 
 Broadway\nhttp://www.HumanistHall.org 
URL:https://www.indybay.org/newsitems/2009/12/08/18631876.php
DTSTART:20091224T033000Z
DTEND:20091224T053000Z
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