An engine powered entirely by sound waves — no fuel, no combustion, just pure vibration doing the work. It sounds crazy, but ...

Crazy cat antics after kitty does a No. 2 is called ‘poo-phoria’ and here’s why. DOES your kitty zip through after a number two? Does your cat run away after using the tray or just act a ...

The charged cultural conversation about pets and children — see “Chimp Crazy,” “childless cat ladies” and more — reveals the hidden contradictions of family life.