Can danger make us superhuman? A 13-year-old Australian boy has shocked the world by swimming for four hours across a choppy, shark-infested stretch of ocean to save his family.
Teenager’s four-hour swim to save family
Epic feat: Austin Appelbee abandoned his own life jacket because it was slowing down his swim to shore. Glossary
Horizon - The apparent line where the Earth’s surface (or sea) seems to meet the sky when you look into the distance.
phenomenon - A remarkable person or thing. Or something that is observed to exist.
Tendons - Flexible tissue that attaches muscles to bones.
Amygdala - An almond-shaped structure in the middle of the brain that is thought to hold some of our oldest instincts, such as the “fight or flight” impulse.
Adrenaline - A hormone made by the body in response to a stressful or threatening situation.
Cortisol - A hormone that helps the body deal with stress.
Perception - The way you look at something.