A sea turtle's lifespan ranges from 80 to 100 years. It is difficult to determine the exact age of a sea turtle from physical appearance. Biologists derive age estimates from the maturity and reproductive status of the t... More »

An adult green sea turtle can weigh as much as 300 to 350 pounds, and the leatherback sea turtle can grow up to 1,500 pounds. Green sea turtles are huge animals that can grow as large as 3 to 4 feet in length, while leat... More »

Research proposes that 47 or more sea turtle species communicate using a form of sound. The purpose of making the sound is to state their social standing, find the location of other turtles or create reproductive signals... More »

The oldest sea turtle is said to be 400 years old. It is in captivity in the Guangzhou Aquarium in China and weighs 300 kilograms. It is not possible, however, to determine the age of the oldest sea turtle in the wild. More »

The average lifespan of sea turtles is about 80 years. Sea turtles outlive most research projects, so it is difficult to determine the average lifespan of these creatures. More »

www.reference.com Pets & Animals Reptiles Turtles

The Cheloniidae, or scute-shelled sea turtles, are a group of seven species with life spans ranging up to 75 years in captivity. Leatherbacks, which have shells covered in tough skin rather than scutes, live at least to ... More »

www.reference.com Pets & Animals Reptiles Turtles

As of 2015, the Kemp's ridley sea turtle is the most endangered with only around 1,000 nesting females left. Accurate population data does not exist for loggerheads, hawkbills, flatbacks, olive ridleys, green sea turtles... More »