All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
The main things the WWF is doing with regard to circle hooks are supporting innovation and educating people.
Circle hooks help to reduce sea turtle deaths by up to 90%. The WWF has encouraged the elimination of tariffs on these hooks, and funds for further innovation for safer hooks. It has also led education initiatives to inform individuals, industries, and governments of the dangers of J-shaped hooks.
Emperor penguins need lungs to breathe. In penguin lungs, air never stops. ... Once the air goes farther into the trachea it splits into two different directions into both lungs. To get the oxygen into the blood cells, it must come "within small distance of the penguin blood cells".