Posted on : 09-03-2010 | By : India Current Affairs | In : Environment
Factsheet
• Marine turtles are characterised by 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 breath through lungs therefore, come to the surface to take oxygen. They have developed an anaerobic system of respiration.
• 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 form 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 turtle’s have an acute sense of smell in the water. They use smell to locate food and to recognise nesting beach.
• Marine turtles, it is believed, can live for 100 years.
• Sea turtles possess a salt excretory gland at the corner of the eye, in the nostrils or in the tongue depending on the species.
• Sea. Turtles enjoy immunity from the sting of the badly box jellyfish and regularly eat them.
• It takes decades for sea turtle to reach sexual maturity.
• Marine turtles are large, air breathing reptiles.
• They have horny bill instead of teeth.
• The hetchling’s gender depends on the sand temperature. Higher the temperature, more number of females, lower the temperature more number of males.
• Marine turtles are cold blooded, i.e. ectothermic.
• Only female marine turtles come ashore to nest after mating. The males are never found on the shore.





