Researchers have carried out the first detailed study of the molecular mechanisms responsible for formation of the brachiopod shell. Comparison with shell synthesis in other groups reveals the deep ...

Egg shell formation for Parastrigea mexicanus is described. Eleven histochemical tests were used to elucidate the process and to characterize the oogenotop. The egg is formed in the ootype (a region ...

More carbon dioxide in the air also acidifies the oceans. It seemed to be the logical conclusion that shellfish and corals will suffer, because chalk formation becomes more difficult in more acidic ...