Marine turtle facts

• Marine turtles are characterised by a large, streamlined shell and non-retractile head and limbs.
• The leatherback turtle is the largest sea turtle species; the Kemp's Ridley is one of the smallest.
• Marine turtles breathe through lungs therefore, come to the surface to take oxygen.
• Marine turtle have Flippers, instead of legs that aid in swimming.
• Marine turtles have large upper eyelids that provide protection for their eyes.
• They can see fairly well in water but are shortsighted on land.
• They secrete excess salt from their body by 'crying'.
• Marine turtles do not have an external ear opening.
• Researchers have found that sea turtles respond to low frequency sounds and vibrations.
• Each species has a jaw shape adapted for its diet.
• Marine turtles have an acute sense of smell in the water. They use smell is for locating food and for recognising nesting beach.
• Marine turtles, it is believed, can live for 100 years.