Often extinctions in the ocean occur at the same time as those on land. Then again, the ice age extinctions lost many big animals, but not many sea faring ones.
There are two types of courage involved with what I did. When it comes to picking up a rifle, millions of people are capable of doing that, as we see in Iraq or Vietnam. But when it comes to risking their careers, or risking being invited to lunch by the establishment, it turns out that's remarkably