Life Hammerhead sharks clamp their gills shut to stay warm on deep dives Even for cold-blooded sharks, the deep ocean is frigid. To tolerate low temperatures as they dive for deep-water squid, scalloped hammerheads close their gills NewsFree
Life Seahorses have a super strong gulp thanks to two spring-like tendons Elastic tendons let seahorses suck in water around eight times faster than they could using muscle power alone NewsFree