For a Quirks & Quarks interview on a related subject: https://www.cbc.ca/radio/quirks/hammerhead-shark-breath-holding-warm-1.6841913 https://www.cbc.ca/radio/qu

For a Quirks & Quarks interview on a related subject: https://www.cbc.ca/radio/quirks/hammerhead-shark-breath-holding-warm-1.6841913 https://www.cbc.ca/radio/quirks/hammerhead-shark-breath-hold...