Photograph by Brian J. Skerry
Loggerhead Sea Turtle Range
- Average life span in the wild:
- More than 50 years
- 36 in (90 cm)
- 253 lbs (115 kg)
- Group name:
- Protection status:
- Did you know?
- Sea turtles can move through the water at speeds of up to 15 mi (24 km) per hour.
- Size relative to a 6-ft (2-m) man:
Loggerhead turtles are the most abundant of all the marine turtle species in U.S. waters. But persistent population declines due to pollution, shrimp trawling, and development in their nesting areas, among other factors, have kept this wide-ranging seagoer on the threatened species list since 1978.
Their enormous range encompasses all but the most frigid waters of the world's oceans. They seem to prefer coastal habitats, but often frequent inland water bodies and will travel hundreds of miles out to sea.
The largest of all hard-shelled turtles—leatherbacks are bigger but have soft shells—loggerheads have massive heads, strong jaws, and a reddish-brown shell, or carapace. Adult males reach about three feet (nearly one meter) in shell length and weigh about 250 pounds (113 kilograms), but large specimens of more than 1,000 pounds (454 kilograms) have been found.
They are primarily carnivores, munching jellyfish, conchs, crabs, and even fish, but will eat seaweed and sargassum occasionally.
Mature females will often return, sometimes over thousands of miles, to the beach where they hatched to lay their eggs. Worldwide population numbers are unknown, but scientists studying nesting populations are seeing marked decreases despite endangered species protections.
Slither in to meet some of the largest, deadliest, and fastest snakes in the world.
Welcome to Billie Swamp Safari, where things get wild.
Come eye-to-eye with the king cobra, the longest venomous snake in the world. Learn why it is the reptile of choice for exotic snake charmers.
Take a dip with more of these prehistoric giants. But watch yourself; they do bite.
Scientists estimate only about 3,000 wild tigers are left in the entire world. Meet the subspecies and see what threats each is facing.