White shark teeth in that they are larger and thicker, the serrations on each tooth occur in regular intervals, and they possess a bourlette (a darker, chevron-shaped region near the tooth’s root). The largest extant megalodon tooth measures 17.8 cm (6.9 inches) in length, almost three times longer than those of modern white sharks (which are typically about 5.4 cm [2.1 inches] long). In addition, megalodon possessed a ferocious bite; its bite diameter was 3 metres (about 9.8 feet), several times larger than the bite diameter of averaged-sized white sharks.
Great white sharks bear live young and females give birth to between two and 10 pups per litter, and perhaps as many as 14. Researchers think the gestation period is anywhere from 12-22 months which would only allow for breeding to occur approximately every other year.
Male great white sharks generally arrive at the same time to the Farallon Islands off the California Coast and the offshore Island of Guadalupe, Mexico from late July through August, and females arrive to these locations several weeks thereafter. These sharks are observed at their coastal aggregation sites through February.
Great white sharks are opportunistic predators, feeding from the ocean’s surface to the seafloor. As great white sharks grow in size, so does the range of their prey. Smaller great whites prey on fish, rays, and crustaceans and when they are larger also eat seals, sea lions, dolphins, seabirds, marine turtles, rays, and other sharks.
Credit : Oceana USA
Picture Credit : Google
