Ardi proved that bipedalism, or walking upright on two feet, existed half a million years before previously thought * Thesis: The main features of Ardi that helped shed light on these discoveries were from close examinations of Ardi’s skull, pelvis and limbs, and her teeth. Skull Let’s begin by talking about Ardi’s skull.
The only distinct differences were the Orohippus had more rigid teeth for tougher foliage, and its toes had become smaller and grew closer together. The earlier horse had no defense mechanism other than running away. Quick get aways were becoming more and more important to the species’ survival. After about thirty eight million years the equine bloodline was getting closer to perfection. The Merychippus were developed around 17 million years ago.
rex. This dinosaur looked like a smaller, less muscular version of Tyrannosaurus. As an early member of the tyrannosaur family, Albertosaurus was the final design for the large meat-eating dinosaurs. It only had two fingers on its hands, which were at the end of short arms. It had long legs and it a wide skull with lots of power in its bite.
They can weigh up to 350 pounds. They are not able to walk on hind legs. There are only about 1000 left in the wild because of their habitat being destroyed. They spend 14 hours a day eating, which is abut 50 -60 pounds of bamboo in one day. The next oldest bear that evolved was from the Subfamily Tremaratinae, the family of the Adean (or Spectacled Bear).
Alfred Wegner was the theorist behind the discovery of tectonic plates back at the start of the 19th century. He found that across the globe there were small bits of evidence that showed the earth was once just one big continent called Pangaea, one part of evidence he found to explain this vast continent was the mountain ranges going through the middle of the West of Africa and the East of South America both of which go right up to the coastline and end in the sea. He noticed that if you connected the two continents up like a jigsaw then the two mountain ranges joined up nicely to make one big one. It isn’t just these two continents that join up but all the continents we have today connected up. For example Canada and the north of Scotland connect agreeably, and they have similar rock formations which indicate that they were laid down at the same time in the same place.
They weigh around 2000-2,800 pounds. Adult males and females are usually dark on the head, especially the top of the head and upper and lower jaws. Unlike most other whales, narwhals have no dorsal fin, instead they have a low bumpy ridge that begins midpoint of the back and continues to the fluke, or tailfins. The “horn” that gives the narwhals the name “Sea Unicorn”, is actually a tooth that can reach up to nine feet long and can weigh up to twenty pounds. Both males and females are born with two teeth pointing forward in the upper jaw, but the left tooth of the male grows long and spirals counter clockwise toward the tip.
About half a million years ago human fossils diverged from the Homo erectus in their enlarged, rounder, and less angular skulls. It is interesting that at this time the human populations of Africa and Western Eurasia began to diverge from each other and from East Asian populations in skeletal details. Human history kicked off around 50,000 years ago, a period which Diamond calls the Great Leap Forward. The earliest signs of the Great Leap Forward were found in East African areas with standardized stone tools and first preserved jewelry. Similar
The hobbit brain is smaller by a modern human's brain. Its around 400 cubic centimeters, is less than one third the size of a modern human. The hobbits skeleton was surrounded by tools, which is a throwback to a primitive ancestor. The hobbits brain is the size of chimpanzee and found with stone tools. The brain size has tripled in the course of human evolution.
The hindflippers are short relative to the large body, with short, fleshy tips on the digits. [2] The size and weight of the brown fur seal depends on the subspecies. The Southern African subspecies is on average slightly larger than the Australian subspecies. Males of the African subspecies (A. p. pusillus) are 2.3 metres (7.5 ft) in length on average and weigh
It has a pale gray complex and lies under the turtle back formations (convex crystalline structures) in mountain ranges in the area (namely the Black, Talc and Ibex mtn. ranges). There are also intrusive formations of ancient granite that date back 1.4 billion years ago. About 1.2 billion to 900 million years ago, during a divergent boundary fault zone, the Pahrump Group of sedimentary rock was deposited. Between the 500 million years of the basement rock and the Pahrump group being deposited, there