adaptation of animals!! lol..

REPTILES

Turtles have a dorso-ventrally flattened body, a beaked head at the end of a short neck, and paddle-like arms well-adapted for swimming. Unlike the closely-related hawksbil turtle, the green sea turtle's snout is very short and its beak is unhooked. The horny sheath of the turtle's upper jaw possesses a slightly-denticulated edge while its lower jaw has stronger, more defined denticulation. The dorsal surface of the turtle's head has a single pair of prefrontal shields. Mature C. mydas front appendages have only a single claw (as opposed to the hawksbill's two), although a second claw is sometimes prominent in young specimens. The carapace of the turtle is known to have various color patterns that change over time. Hatchlings of C. mydas, like those of other marine turtles, have mostly black carapaces and light-colored plastrons. Carapaces of juveniles are dark brown to olive, while those of mature adults are either entirely brown, spotted or marbled with variegated rays. Underneath, the turtle's plastron is hued yellow. C. mydas limbs are dark-colored and lined with yellow, and are usually marked with a large dark brown spot in the center of each appendage. The green sea turtle is known to grow up to one and a half meters long. While individuals have been caught that reached weights of up to 315 kilograms, average weight of mature individuals is around 200 kilograms. The largest Chelonia mydas ever recorded weighed 395 kilograms (871 lbs.) The species is known to live up to eighty (80) years in the wild.

MAMMALS

Sea otters are up to about 4 feet (1.3 meters) long and weigh from 45 to 82 pounds (20-37 kilograms). They have webbed hind feet which they use to swim; the forefeet are smaller. The claws are semi-retractile. The ears and nostrils close when the otter is underwater. Sea otters sleep and rest on their backs, usually anchored in a kelp (seaweed) bed.Sea otters are carnivores (meat-eaters). They eat crustaceans, clams, mussels, abalone, octopuses, squids, and fish. They hunt for their prey in the ocean and on the sea floor. These intelligent mammals use rocks to help crack open clams.The main difference between the three subspecies is the shape of the skull and the size of the otter (Alaskan otters tend to be larger). There are also other types of otters, such as the river otter, but sea otters are distinctly different from other otters. They are adapted to living their entire lives in the water, whereas other otters live on land and merely hunt in water. Unlike other marine mammals, such as seals and dolphins, sea otters do not rely on a layer of fat to insulate their bodies from the cold water. Instead, they have a thick fur which keeps them warm. Adult sea otters average about 1.3 meters (4 feet) in length and about 20-45 kilograms (45-100 pounds) in weight. Their normal position, when in the ocean, is floating on their backs with their paws sticking up out of the water. They do this to conserve heat (since their paws aren't covered with fur).

BIRDS

Seagulls are one of the major predators in the sea. They come in a large pack and are close to land on the count of that not only they stuff their tummies for fish, they also eat insects that fly from the waters and crustaceans like crabs and shrimps. The Ring-Billed Gull is about 18 to 21 inches (45-53 cm) long with a 20 inch (50 cm) wingspan. It weighs about 1.5 pounds (0.7 kg). Adults (who mature at three years of age) are mostly white; juveniles are a mottled brown.