Receptors that monitor stretch in the articular capsules that enclose synovial joints; they are proprioceptors, mechanoreceptors, and nociceptors; contains at least four receptor types (1) Lamellar Corpuscles, (2) Bulbous Corpuscles, (3) Free Nerve Endings, and (4) Receptors resembling Tendon Organs; together they provide information on joint position and motion.
Puffins are built for swimming underwater rather than for flying, and at the Alaska SeaLife Center in Seward, a mutli-level seabird display allows visitors to watch puffins and other sea birds dive to the bottom of the enclosure for food. When they dive, puffins flap their wings through the water, appearing to fly.
Tufted puffin. The tufted puffin (Fratercula cirrhata), also known as crested puffin, is a relatively abundant medium-sized pelagic seabird in the auk family (Alcidae) found throughout the North Pacific Ocean. It is one of three species of puffin that make up the genus Fratercula and is easily recognizable by its thick red bill and yellow tufts.