5 : The smallest species of turtles are only 3 to 4 inches long, while the largest is the leatherback sea turtle which can be up to 10 feet long and weigh up to 2,000 pounds.
6 : Many species of turtle migrate seasonally, but most only travel short distances (often between 1 and 20 miles). However, sea turtles migrate thousands of miles yearly to their favorite nesting sites.
7 : Turtles have very good hearing compared to other reptiles and can hear sounds of up to 500Hz on land.
8 : Turtles are typically opportunistic omnivores. Those who spend more time on land usually eat more plant material, while those that spend more time in the water – particularly sea turtles – have a more carnivorous diet.
9 : As reptiles, all turtles are cold-blooded, which means that their body temperature depends on the environment.
10 : Turtles face several very real threats today, with habitat destruction and the destruction of nest sites being among the main reasons.