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22-12-31 monarchs rarely give up their thrones willingly, and these monarch butterflies are no exception. theyre currently endangered after a big drop in their migratory population. scientists believe climate change, pesticides and illegal logging are threat...

22-11-19 据联合国《世界人口展望2022》报告称，11月15日，地球人口步入80亿时代。人口数量增加，从一个侧面反映了人类文明的进步，与此同时，资源消耗、环境污染、城市化等因素正带来持续生态压力。 the world population hit 8 billion on tuesday, according to the united n...

22-08-19 联合国一份有关人口趋势的报告显示，2023年印度预计将超过中国，成为世界上人口最多的国家。与此同时，该报告还指出，世界人口将在今年11月15日达到80亿，到2050年将达到97亿，但由于许多国家的生育率下降，全球人口增长速度正处于1950年以来的最低水平。 the earth is...

22-01-22 in new zealand, southern right whales were hunted to near extinction about a century ago. since that time, the population has slowly recovered. 在新西兰，南露脊鲸在大约一个世纪前被捕杀至濒临灭绝。但自那时起，其数量就缓慢回升。 dr emma carroll, unive...

22-01-21 the world health organization has warned that half of europe will have caught the omicron covid-19 variant within the next six to eight weeks. 世界卫生组织警告，在未来6到8周内，欧洲一半人口将感染奥密克戎变异毒株。 the projection was based on the sev...