As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization.
Captain James Cook was the first to cross the Antarctic Circle, doing so in 1773. However, pack ice and the freezing of his ship's sails prevented him from reaching the Antarctic continent itself. The same thing happened when he again crossed the Antarctic Circle a year later.
Discovery in the deep sea. Weird life flourishes at deep-sea vents the world over, but no one had ever found hydrothermal vents in Antarctica, explained Jon Copley, a professor of earth and ocean science at the University of Southampton who also participated in the research.