Understanding Extinct [Science Tattoo]

Cecilia writes, "I am working on my PhD in wildlife population genetics, and I can trace my passion for my research to a moment when I was in elementary school and we learned about the extinct dodo bird from Mauritius Island.  At first, I could not understand what "extinct" meant, but as the concept sunk in that I would never see this bird, and no one else would ever see it again, I felt a deep sadness and sense of loss.  Recently, as I was slogging through field and lab work and my ambition ...