Browsing Philippine Daily Inquirer by Subject "aestivation"

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    • The cycle of birth, death and rebirth 

      Go, Antonio Calipjo (Philippine Daily Inquirer, June 2, 2015, on page E3)
      The operculum is a hard and horny structure that exists in many marine and freshwater snails. It is attached to the foot of the mollusk and serves as a trapdoor that closes the aperture of the shell when the soft parts of ...