The world is polluted, overcrowded, and in economic trouble. Why bring a baby into this mess? If your mothering instinct is still too strong to resist the lure of pregnancy, artist Ai Hase-Gawa has a solution: give birth to an endangered species. Rather than creating another human in a world that already has 7 billion of them, Hase-Gawa suggests that aspiring mothers get pregnant with a shark, salmon, bluefin tuna or a conveniently baby-sized Maui's dolphin. Would you be less likely to crave a plate of sushi if it were made with your own offspring?