We find out what would happen if you tried to use a stun gun on an elephant. Would you live to tell the tale? Plus, we ask why dogs need to avoid chocolate... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Why can't dogs eat chocolate?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...