Is mankind still evolving?
A few of us seem to believe the answer is a firm "no", that since we are no longer in danger of being eaten by saber-tooth tigers, humanity is no longer challenged in a "survival of the fittest" environment.
But is this truly the case?
Imagine a herd of hamsters (just do it). Half of these hamsters, through adaptation or mutation, have the ability to swim, while the other half do not. In their environment, food is plentiful, and the hamsters have no natural predators. As a result, they are able to live long lives and have lots of hamster babies.
Now imagine that there is a huge thunderstorm.
The land of the hamsters becomes flooded for several days. Sadly, half of the theoretical hamsters drown in the flood, but the other half is able to swim. In this example, we can safely say that all future hamsters will be born from parents that have the ability to swim, so the future will be full of aquatic hamsters.
How does this relate to human evolution?
If you are reading this, chances are you have read that most of humanity's best and brightest thinkers believe mankind is headed for disaster. Terrible wars, overpopulation, famine, plague, and climate change await us if we stay our current course. The destruction of our environment, and our species, is a very real possibility.
Many people have already begun making changes to help slow down our destruction of the Earth, and to protect themselves from the coming storm. Yet many more are unable to understand the problems humanity is facing, and continue to live their lives as usual, without regard for our future.
Like the hamsters, when the storm comes, only those who are prepared will survive. Whether that is evolution or not, we leave to the reader to decide.