Tyrannosaurus Rex Articles

• Fossils
  Rainforests
  Paleontology
  Ecology
  Life Sciences
  Biology
   
  

  Sponge

  The sponges or poriferansare animals of the phylum Porifera. They are primitive, sessile, mostly marine, waterdwelling filter feeders that pump water through their matrix to filter out particulates ... > more
• Fossils
  Dinosaurs
  Extinction
  Geography
  Origin of Life
  Geology
   

  Mesozoic

  The Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The Mesozoic includes three geologic periods: from oldest to youngest, they are the Triassic, the Jurassic and the Cretaceous ... > more
• Evolutionary Biology
  Evolution
  Charles Darwin
  Nature
  Human Evolution
  Early Humans
   
  

  Parallel evolution

  Parallel evolution is the independent evolution of similar traits, starting from a similar ancestral condition. Frequently this is the situation in more closely related lineages, where several ... > more
• Early Humans
  Human Evolution
  Anthropology
  Fossils
  Evolution
  Cultures
   

  Homo ergaster

  Homo ergaster ("working man") is an extinct hominid species (or subspecies, according to some authorities) which lived throughout eastern and southern Africa between 1.9 to 1.4 million years ago with ... > more
• Early Humans
  Human Evolution
  Anthropology
  Fossils
  Evolution
  Cultures
   

  Homo heidelbergensis

  Homo heidelbergensis ("Heidelberg Man") is an extinct, potentially distinct species of the genus Homo and may be the direct ancestor of Homo neanderthalensis in Europe. According to the "Recent Out ... > more
• Apes
  Early Humans
  Human Evolution
  Anthropology
  New Species
  Mammals
   
  

  Hominidae

  The hominids are the members of the biological family Hominidae (the great apes), which includes humans, chimpanzees, gorillas, and orangutans. The exact criteria for membership in the Homininae are ... > more
• Early Humans
  Human Evolution
  Anthropology
  Evolution
  Origin of Life
  Charles Darwin
   
  

  Multiregional hypothesis

  The multiregional origin hypothesis of human species holds that some, or all, of the genetic variation between the contemporary human races is attributable to genetic inheritance from either Homo ... > more
• Early Humans
  Human Evolution
  Anthropology
  Fossils
  Cultures
  Charles Darwin
   
  

  Rhodesian Man

  Rhodesian Man (Homo rhodesiensis) is a hominin fossil that was described from a cranium found in an iron and zinc mine in Northern Rhodesia (now Kabwe, Zambia) in 1921 by Tom Zwiglaar, a Swiss miner. ... > more
• New Species
  Apes
  Animals
  Life Sciences
  Wild Animals
  Developmental Biology
   

  Priapulida

  Priapulida are a phylum of marine worms with an extensible spiny proboscis. Priapulid fossils are known at least as far back as the Middle Cambrian. Their nearest relatives are probably Kinorhyncha ... > more
• Birds
  Early Birds
  Bird Flu Research
  Zoology
  New Species
  Animals
   
  

  Bird

  Birds are bipedal, warm-blooded, oviparous vertebrates characterized primarily by feathers, forelimbs modified as wings, and hollow bones. Birds range in size from the tiny hummingbirds to the huge ... > more

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