A science team is investigating a mysterious crater on the Yamal peninsula of northern Siberia. It's about 80 meters (87.5 yards) across. No cause is yet known.
Rammasun, also called Glenda, intensified before making landfall earlier today. Typhoon status of 175 kph/110 mph expected as it passes very close to Manila.
Like in humans, excess fat in elephants can contribute to the development of heart disease, arthritis, a shorter lifespan and infertility, say researchers.
Migrating Arctic shorebirds may play an important role in the long-distance dispersal of mosses and liverworts to remote regions in North and South America.