The acronym is also remembered by using the phrase 'Please, Excuse, My, Dear, Aunt, Sally' to remind students of the starting letters within the abbreviation. If you're having trouble, start with ...

Overfishing is the harvesting of wildlife from the sea at rates too high for species to replace themselves. Scientists have been sounding the alarm about this looming catastrophe for decades. But ...

Charles Darwin's theory of evolution by natural selection made us rethink our place in the world. The idea that humans shared a common ancestor with apes was a challenge to the foundations of western ...