Species go extinct because there are historical contraints built into a given body or a given design. Kevin Kelly (editor)
Sooner or later, we must expand life beyond our little blue mud ball--or go extinct. Elon Musk
Most people know that forests are the lungs of our planet, literally playing a critical role in every breath we take. And that they're also home to incredible animals like the orangutan and elephant, which will go extinct if we keep cutting down their forests. Chris Noth