Dinosaur Articles

• Organic Chemistry
  Graphene
  Electronics
  Nanotechnology
  Chemistry
  Fossil Fuels
   
  

  Carbon-14

  Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon discovered on February 27, 1940, by Martin Kamen and Sam Ruben. Its nucleus contains 6 protons and 8 neutrons. Its presence in ... > more
• Frogs and Reptiles
  New Species
  Animals
  Fish
  Early Humans
  Biology
   

  Frog zoology

  About 400 million years ago, some members of the sarcopterygian group of fish moved onto land. These became the first amphibians. Today, these animals still spend part of their lives in water and ... > more
• Global Warming
  Climate
  Early Climate
  Ice Ages
  Fossils
  Environmental Issues
   
  

  Geologic temperature record

  This article is devoted to temperature changes in Earth's environment as determined from geologic evidence on multi-million to billion (109) year time scales. The last 3 million years have been ... > 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
  Anthropology
  Fossils
  Origin of Life
  Cultures
   
  

  Homo erectus

  Homo erectus ("upright man") is a hominin species that is believed to be an ancestor of modern humans (with Homo heidelbergensis usually treated as an intermediary step). The species is found from ... > 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
  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
• Frogs and Reptiles
  Animals
  Wild Animals
  Fish
  Endangered Animals
  Extinction
   
  

  American Alligator

  The American Alligator has a large, slightly rounded body, with thick limbs, a broad head, and a very powerful tail. Males can weigh 500 lbs to over 1000 pounds; one American Alligator allegedly ... > 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

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