Because all of biology is connected, one can often make a breakthrough with an organism that exaggerates a particular phenomenon, and later explore the generality.
“I think it's really important to mix cardio with toning, so I love boxing and then add in Pilates or ballet to keep me long and lean and avoid bulking up.”
“Your success and happiness lies in you. Resolve to keep happy, and your joy and you shall form an invincible host against difficulties.”