Leatherback sea turtle million years ago during the Cretaceous period. The dermochelyids are relatives of the family Cheloniidae, which contains the other six extant sea turtle species. However, their sister taxon is the extinct family Protostegidae that included other species that did not have a hard carapace. Leatherback turtles have the most hydrodynamic body design of any sea turtle, with a large, teardrop-shaped body. A large pair of front flippers powers the turtles through the water. Like other sea turtles, the leatherback has flattened forelimbs adapted for swimming in the open ocean. Claws are absent from both pairs of flippers. The leatherback's flippers
San Clemente loggerhead shrike to help the shrike. For example, snipers must aim around bird nests when practicing. Thanks to the program, the bird's population reached 135 (captive and wild) specimens by 2004. In 2013, an estimated 70 breeding pairs were alive in the wild. San Clemente loggerhead shrike The San Clemente loggerhead shrike ("Lanius ludovicianus mearnsi") or San Clemente Island loggerhead shrike is a subspecies of the loggerhead shrike that is endemic to San Clemente Island, California. The San Clemente loggerhead shrike is a passerine bird of medium size. Around its eyes, it has black feathers, a color which is also found in