s gas production per 2020 estimates, these figures are rapidly evolving, and much of the gas industry’s attention is redirecting further south to Namibia, South Africa, inland to Zimbabwe, and to the east in Tanzania and Mozambique, which is home to the continent’s third largest store of ...
The small, reddish or purplish urchins of the genusArbacia,such asA. punctulata,the common urchin fromCape Codto the West Indies, are familiar subjects in embryology; a female may release several million eggs at a time. In the West Indies, sea eggs—the ovaries ofTripneustes ventricosus—...