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Dermochelyidae is a family of sea turtles which has seven extinct genera and one extant genus, containing one living species, the leatherback sea turtle (Dermochelys coriacea). The oldest fossils of the group date to the Late Cretaceous .
The map in sea turtles was the first ever described though similar abilities have now been reported in lobsters, fish, and birds. [48] Magnetoreception by land turtles was shown in a 2010 experiment on Terrapene carolina, a box turtle. After teaching a group of these box turtles to swim to either the east or west end of an experimental tank, a ...
The deepest diving sea turtle is the leatherback which can reach 1250 m depth, while the record for the longest dive goes to loggerheads (Caretta caretta) in the Mediterranean at more than 10 hours. For many hard-shelled sea turtles, depths visited on average (i.e. outside of overwintering) range from 2–54 m; for leatherbacks, this ranges up ...
The leatherback sea turtle (Dermochelys coriacea), sometimes called the lute turtle, leathery turtle or simply the luth, is the largest of all living turtles and the heaviest non-crocodilian reptile, reaching lengths of up to 2.7 metres (8 ft 10 in) and weights of 500 kilograms (1,100 lb).
Color vision is categorized foremost according to the dimensionality of the color gamut, which is defined by the number of primaries required to represent the color vision. This is generally equal to the number of photopsins expressed: a correlation that holds for vertebrates but not invertebrates .
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Point Denis is a major breeding ground for the leatherback turtle (Dermochelys coriacea). Between 1 800 and 2 000 nests are laid annually on its beaches. Recent studies by Dr Sharon Deem, formerly of the Wildlife Conservation Society, note that the worldwide turtle population is being threatened by man's activities. [1]
Sandy Point National Wildlife Refuge preserves habitat for threatened and endangered species, with particular emphasis on the leatherback sea turtle (Dermochelys coriacea). Its two miles (3 km) of sandy beaches on the southwest corner of Saint Croix, U.S. Virgin Islands is an ideal nesting place for leatherbacks.