Thursday, October 28, 2010
The Giant Galapagos tortoise is a very fascinating organism. It spends 16 hours a day taking a nap. The speed of the tortoise is very slow, and it is the largest species of tortoise in the world. One tortoise, named Jonathan, set the world record of the oldest organism on Earth, which is 175 years of age. They can weigh up to 400 kilograms which is 882 pounds and can reach a length of 6ft. The tortoise does not have to compete for food because there are no other organisms similar to it. They are cold blooded, so they need 1 to 2 hours to absorb heat from the Sun. They are most active between early morning and late afternoon. The tortoise has a mutualistic relationship with the Galapagos finch and other small birds. The birds get to eat the parasites on the tortoise while the tortoise is ridden of pests.