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Dr. John Pearse has spent a lifetime studying the reproductive biology and ecology of sea stars and sea urchins. His doctoral work involved exploring the biology of marine invertebrates in the Antarctic, where he overwintered in 1961 then returned with his own students repeatedly in the 1980s. They found that the abundant and ecologically important Antarctic cushion star spawns in mid-winter to produce long-lived pelagic larvae that feed on bacteria and phytoplankton in the summer. Dr. Pearse has also conducted research in the Red Sea and tropical Pacific.
