E assim caminhamos todos juntos, sem parar…
nossos passos pelo chao, vao ficar…
Biology is about variation.
Without variation, the world would be static and unchangeable, and species would gradually disappear as they failed to meet challenges like changing climates and environments.
So as we continue our very necessary debates over ethical issues, let’s bear in mind that morality is a concept limited to our species.
The natural world is a fuzzy place that doesn’t always accommodate our decidedly human need to find cut-and-dried categories.
Neil Shubin, an associate dean at the University of Chicago and the provost of the Field Museum, is the author of “Your Inner Fish: A Journey Into the 3.5-Billion-Year History of the Human Body.”