I have been unable to find references to more than 13 species extinguished by humans. Allowing there may be as many as a hundred, that is far short of the species that have simply died out in our time, often in spite of our attempts to save them. We still don’t know why most species become endangered – we focus on the ones we have affected to some extent but others are dying when we find them. The ivory billed woodpecker is just vanishing and nobody knows why.
I have been unable to find references to more than 13 species extinguished by humans. Allowing there may be as many as a hundred, that is far short of the species that have simply died out in our time, often in spite of our attempts to save them. We still don’t know why most species become endangered – we focus on the ones we have affected to some extent but others are dying when we find them. The ivory billed woodpecker is just vanishing and nobody knows why.