If the numbers of zooplankton are reduced by pollution, such as plastic waste, then more algae will grow and the population of other consumers will fall. Ecosystems close ecosystemThe living ...

Our ancestors still resembled apes nearly 4 millions years later. This includes Lucy, a 3.2-million-year-old human ancestor discovered in Ethiopia, from a group called the australopiths.

“Resonant relationships are like emotional vitamins, sustaining us through tough times and nourishing us daily,” writes Daniel Goleman in Social Intelligence: The New Science of Human Relationships.