6. Earth is full of life
There are trillions of planets out there and yet, following years of extensive research, ours remains the only living, breathing planet known to harbour life. Thanks to its fortuitous conditions and placement in our solar system, it is home to an estimated 5 ± 3 million weird and wonderful species. Despite Earth appearing flush and perfectly equipped as a planet to support life, changes to our ecosystems have led to the endangerment of species such as the giant panda, the blue whale, the african elephant and the sea turtle.