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Who is chris brochu dating

Soft tissue and proteins have been reported in at least one of these specimens.

Tyrannosaurus rex was one of the largest land carnivores of all time; the largest complete specimen, FMNH PR2081 ("Sue"), measured 12.8 metres (42 ft) long, and was 4.0 metres (13 ft) tall at the hips. rex formed a natural S-shaped curve like that of other theropods, but was short and muscular to support the massive head.

The forelimbs were long thought to bear only two digits, but there is an unpublished report of a third, vestigial digit in one specimen.

Like many bipedal dinosaurs, Tyrannosaurus rex was historically depicted as a 'living tripod', with the body at 45 degrees or less from the vertical and the tail dragging along the ground, similar to a kangaroo.

This concept dates from Joseph Leidy's 1865 reconstruction of Hadrosaurus, the first to depict a dinosaur in a bipedal posture.

Histology has also allowed the age of other specimens to be determined.

Growth curves can be developed when the ages of different specimens are plotted on a graph along with their mass. rex growth curve is S-shaped, with juveniles remaining under 1800 kg (2 short tons) until approximately 14 years of age, when body size began to increase dramatically. rex would gain an average of 600 kg (1,300 lb) a year for the next four years.

In contrast the hind limbs were among the longest in proportion to body size of any theropod.

The tail was heavy and long, sometimes containing over forty vertebrae, in order to balance the massive head and torso.

Mortality increases again following sexual maturity, partly due to the stresses of reproduction. rex fossils is due in part to low juvenile mortality rates; the animals were not dying in large numbers at these ages, and so were not often fossilized.

However, this rarity may also be due to the incompleteness of the fossil record or to the bias of fossil collectors towards larger, more spectacular specimens.

Tyrannosaurus (pronounced /tɨˌrænəˈsɔːrəs/ or /taɪˌrænoʊˈsɔːrəs/, meaning 'tyrant lizard') is a genus of theropod dinosaur.