<p> They have large upper eyelids that provide protection for their eyes. They can see fairly well in water but are shortsighted on land. <br /><br /> They secrete excess salt from their body by 'crying'.<br />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. <br />They use smell for locating food and for recognising nesting beach. Marine turtles, it is believed, can live for 100 years.<br />Instead of teeth, turtles are equipped with a horny bill. Marine turtle limbs have evolved into flippers and their body shape is streamlined. Turtles, like all reptiles, are cold blooded (ectothermic). <br /><br />Their body temperature is the same as their surroundings. And all present day turtles lay eggs.<br />Named after H N Ridley who first reported the sighting of Olive Ridleys in Brazil in 1887 and their overall olive green colour, Olive Ridleys are the smallest of the marine turtle species in the world. They grow to an average of 70 cms long and adults weigh approximately 45 kgs. The carapace is tear drop shaped. They are omnivorous, feeding on crustaceans and molluscs.</p>
<p> They have large upper eyelids that provide protection for their eyes. They can see fairly well in water but are shortsighted on land. <br /><br /> They secrete excess salt from their body by 'crying'.<br />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. <br />They use smell for locating food and for recognising nesting beach. Marine turtles, it is believed, can live for 100 years.<br />Instead of teeth, turtles are equipped with a horny bill. Marine turtle limbs have evolved into flippers and their body shape is streamlined. Turtles, like all reptiles, are cold blooded (ectothermic). <br /><br />Their body temperature is the same as their surroundings. And all present day turtles lay eggs.<br />Named after H N Ridley who first reported the sighting of Olive Ridleys in Brazil in 1887 and their overall olive green colour, Olive Ridleys are the smallest of the marine turtle species in the world. They grow to an average of 70 cms long and adults weigh approximately 45 kgs. The carapace is tear drop shaped. They are omnivorous, feeding on crustaceans and molluscs.</p>
