Origin of Life Articles

• Dolphins and Whales
  Early Mammals
  Sea Life
  Marine Biology
  Animals
  Early Humans
   
  

  Evolution of cetaceans

  The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, and remnants of their terrestrial origins can be found in the fact that they must breathe air from the surface; ... > more
• Extinction
  Dinosaurs
  Endangered Animals
  Endangered Plants
  Fossils
  Early Climate
   
  

  Extinction event

  An extinction event (also extinction-level event, ELE) occurs when a large number of species die out in a relatively short period of time. Since life began on Earth, a number of major mass ... > more
• Evolutionary Biology
  Evolution
  Charles Darwin
  Nature
  Human Evolution
  Biology
   
  

  Convergent evolution

  In evolutionary biology, convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar ... > more
• Rodents
  Animals
  Mammals
  Early Mammals
  Mice
  Evolution
   
  

  Rodent

  Rodentia is an order of mammals also known as rodents, characterised by two continuously-growing incisors in the upper and lower jaws which must be kept short by gnawing. Forty-percent of mammal ... > more
• Dinosaurs
  Fish
  Extinction
  Evolutionary Biology
  Marine Biology
  Evolution
   
  

  Ichthyosaur

  Ichthyosaurs were giant marine reptiles that resemble a dolphin with large teeth. They lived during a large part of the Mesozoic era, and appeared about 250 million years ago (Ma), slightly earlier ... > more
• Human Evolution
  Anthropology
  Archaeology
  Early Humans
  Cultures
  Ancient Civilizations
   
  

  Human migration

  Human migration denotes any movement by humans from one locality to another, often over long distances or in large groups. Humans are known to have extensively migrated throughout history. This ... > more
• Evolution
  Psychology
  Charles Darwin
  Social Psychology
  Behavior
  Child Psychology
   
  

  Evolutionary psychology

  Evolutionary psychology is a theoretical approach to psychology that attempts to explain useful mental and psychological traits—such as memory, perception, or language—as adaptations, ... > 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
• Ancient Civilizations
  Archaeology
  Fossils
  Human Evolution
  Anthropology
  Cultures
   
  

  Mummy

  A mummy is a corpse whose skin and dried flesh have been preserved by either intentional or accidental exposure to chemicals, extreme cold or dryness, or airlessness. The best-known mummies are those ... > more
• Early Humans
  Human Evolution
  Anthropology
  Evolution
  Fossils
  Cultures
   
  

  Homo rudolfensis

  Homo rudolfensis is a fossil hominin species originally proposed in 1986 by V. P. Alexeev for the specimen Skull 1470 (KNM ER 1470). Originally thought to be a member of the species Homo habilis, the ... > more

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