Tyrannosaurus Rex Articles

• Frogs and Reptiles
  Zoology
  Animals
  Early Mammals
  New Species
  Endangered Animals
   
  

  Reptile

  Reptiles (also called 'herps') are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Reptiles were defined as the set of animals that includes crocodiles, ... > more
• Early Humans
  Human Evolution
  Anthropology
  Evolution
  Charles Darwin
  Origin of Life
   
  

  Timeline of human evolution

  The timeline of human evolution outlines the major events in the development of humans species and the evolution of human's ancestors. It begins with the time of the origin of life and presents a ... > more
• Extinction
  Nature
  Endangered Plants
  Endangered Animals
  Dinosaurs
  Fossils
   
  

  Permian-Triassic extinction event

  The Permian-Triassic (P-T or PT) extinction event, sometimes informally called the Great Dying, was an extinction event that occurred approximately 251.0 million years ago (mya), forming the boundary ... > more
• Early Humans
  Human Evolution
  Anthropology
  Fossils
  Evolution
  Cultures
   
  

  Peking Man

  Peking Man (sometimes now called Beijing Man), also called Sinanthropus pekinensis (currently Homo erectus pekinensis), is an example of Homo erectus. The remains were first discovered in 1923-27 ... > more
• Early Humans
  Human Evolution
  Origin of Life
  Anthropology
  Fossils
  Cultures
   
  

  Recent single-origin hypothesis

  The single-origin hypothesis (or Out-of-Africa model) is one of two accounts of the origin of anatomically modern humans, Homo sapiens. Because of the scarcity of fossils and the discovery of ... > more
• Human Evolution
  Early Humans
  Anthropology
  Fossils
  Cultures
  Evolution
   
  

  Homo floresiensis

  Homo floresiensis ("Man of Flores") is a species in the genus Homo, remarkable for its small body, small brain, and survival until relatively recent times. It is thought to have been contemporaneous ... > more
• Microbiology
  Cell Biology
  Molecular Biology
  Genetics
  Origin of Life
  Developmental Biology
   

  Prokaryote

  Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). This set of characteristics is distinct from ... > more
• Apes
  Human Evolution
  Early Humans
  Rainforests
  Healthy Aging
  Endangered Animals
   
  

  Chimpanzee

  Chimpanzee, often shortened to chimp, is the common name for the two extant species in the genus Pan. The better known chimpanzee is Pan troglodytes, the Common Chimpanzee, living primarily in West, ... > more
• Early Humans
  Human Evolution
  Anthropology
  Cultures
  Evolution
  Origin of Life
   
  

  Homo (genus)

  Homo is the genus that includes modern humans and their close relatives. The genus is estimated to be between 1.5 and 2.5 million years old. All species except Homo sapiens are extinct. Homo ... > more
• Fossils
  Organic Chemistry
  Sports Science
  Graphene
  Early Climate
  Origin of Life
   
  

  Radiocarbon dating

  Radiocarbon dating is a radiometric dating method that uses the naturally occurring isotope carbon-14 to determine the age of carbonaceous materials up to ca 60,000 years. Within archaeology it is ... > more

Search ScienceDaily