Many shark species in the northwestern Atlantic have declined by more than half in just the last 8-15 years. Learn more on this Moment of Science.
The song says that Bonnie lies over the ocean, but it also says that she lies over the sea. Based on these lyrics, where is Bonnie? In the song, the words “ocean” and “sea” are used interchangeably to mean any large body of salty water.
How fast anything spins is partly determined by how its weight is distributed. The closer an object’s weight is to its axis of rotation, the faster it spins. To picture this, imagine an ice skater doing a pirouette. When her arms are extended, she spins slowly.
For many scientists, a species’ success is measured by sheer numbers. In that case, the most successful species known to man is a type of bacterium known as S-A-R-11, or SAR-11 for short. Scientists estimate that there are two-hundred and forty times a billion billion billion SAR11 cells floating around in the oceans. Now that […]