An emperor #penguin dives into the frigid Antarctic water. Emperors can dive as deep as 1,800 feet (550 meters) on a single breath of air that can last up to 20 minutes. Emperor penguin studies is just one example of the many research projects supported by the NSF's U.S. Antarctic Program. [Photo credit: Glenn Grant, NSF]
Plant cell models. Add wooden popsicle sticks w/ tape for cell wall, Ziploc bag (cellular membrane), Aloe vera gel (cytoplasm), bottle cap nucleus, plastic beads (ribosomes), small blue balloon partially inflated ? (vacuole), plastic fishing lure (mitochondria), green oval bean shaped bead (chloroplasts),.... What a fun visual!
Giant barrel sponges off Little Cayman Island. With coral cover on Caribbean reefs at historic lows, sponges are now the dominant, habitat-forming animals on most of them. [Photo credit: Joseph R. Pawlik, University of North Carolina Wilmington]