Explore the biology behind the body's natural circulatory backup, the factors that influence its development, and how doctors assess its protective function.
Discover which animals prey on koalas. We examine native predators, the impact of introduced species, and the key factors that make a koala vulnerable.
Understand the science of Stage Two cold water immersion, detailing why rapid cooling causes total loss of muscle control before core hypothermia begins.
Learn how deep geological forces are separating the African continent, revealing the evidence of rifting and the millions-year prognosis for a new ocean.