Pine trees - as well as spruce and fir, all Christmas tree favorites - produce chemicals called terpenes, giving them their special, distinctive scent.
Atmospheric lakes form in the Indian Ocean and bring much-needed rain to dry areas of Africa's eastern coast. They are peaceful cousins to atmospheric rivers.
Scientists have identified a new big-nosed dinosaur species among a collection of bones discovered on the Isle of Wight in southern England. This dinosaur had a much larger snout than either of the other two known species at the time.