The evolution of color: Team shows how butterfly wings can shift in hue

Sensitive Intervention Points: How can economic butterfly wings can…

Matt Smith | Mobility & Flexibility Toolkit on Instagram: "The king of overhead mobility tests 👑 4 of the main muscles that limit our overhead range of motion: the lats, pec major, subscapularis and teres major are all internal rotators of the shoulder. They want to turn your arm in. They’re therefore stretched by externally rotating (turning your arm out). I believe most coaches and athletes overlook this key factor in developing overhead mobility & flexibility. Simply testing your overhead ra