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In the course of pregnancy, the embryo's average rate-of-growth is 1.40 cm (0.55 in) per month until birth, when the shark pups are 40–60 cm (16–24 in) long, therefore, the frilled shark's gestation period can be as long as 3.5 years; at birth, a frilled shark's litter comprises 2–15 pups, with an average litter comprises 6.0 pups. Shark ...
The longfin mako is a pelagic species found in moderately deep water, having been reported to a depth of 220 m (720 ft). Growing to a maximum length of 4.3 m (14 ft), the slimmer build and long, broad pectoral fins of this shark suggest that it is a slower and less active swimmer than the shortfin mako. Longfin mako sharks are predators that ...
Known for. One of the largest great white sharks recorded. Weight. Estimated >2,000 kg (4,400 lb) Haole Girl is the nickname given to a female great white shark that is considered to be one of the largest great whites. The shark has been seen in Hawaii where it was spotted feeding on a whale carcass. The shark was initially thought to be Deep ...
Encephalization quotient ( EQ ), encephalization level ( EL ), or just encephalization is a relative brain size measure that is defined as the ratio between observed and predicted brain mass for an animal of a given size, based on nonlinear regression on a range of reference species. [1] [2] It has been used as a proxy for intelligence and thus ...
The cookiecutter shark also regularly hunts and eats entire squid with a mantle length of 15–30 cm (5.9–11.8 in), comparable in size to the shark itself, as well as bristlemouths, copepods, and other smaller prey. Round scars from cookiecutter shark bites are found on many cetaceans, such as this beached Gray's beaked whale.
The humpback whale ( Megaptera novaeangliae) is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus Megaptera. Adults range in length from 14–17 m (46–56 ft) and weigh up to 40 metric tons (44 short tons). The humpback has a distinctive body shape, with long pectoral fins ...
Most hammerhead shark species are too small to inflict serious damage to humans. Man carrying a hammerhead shark along a street in Mogadishu, Somalia. The great and the scalloped hammerheads are listed on the World Conservation Union's 2008 Red List as endangered, whereas the smalleye hammerhead is listed as vulnerable.
Otodus chubutensis was a large lamniform shark, with the largest individuals reaching a body length of 13.5 metres (44 ft). [9] Relatively large individuals reached body lengths of 9–11 metres (30–36 ft). [10] Smaller individuals were still about the size of the modern great white shark, reaching body lengths of 4.6–6.3 metres (15–21 ft).