Because man is doing a lot of unhelpful stuff threatening penguins.
Melting ice and overfishing in Antarctica is crashing the food web the penguins depend upon. For specifics from an eye-witness, read Fraser's Penguins: A Journey to the Future in Antarctica by Fen Montaigne.
People are doing a lot of good stuff to protect their habitat and make it to another generation. Like Dr. McSweeney in New Zealand.
Be aware. Do good stuff before they are gone.
This post "Happy Penguin Awareness Day!" is featured on blogs associated with On Your Radar Media Company.