Bird Articles

• Seeds
  Botany
  Endangered Plants
  Agriculture and Food
  Food
  Trees
   

  Parthenocarpy

  In botany and horticulture, parthenocarpy (literally meaning virgin fruit) is the natural or artificially induced production of fruit without fertilization of ovules. The fruit is therefore seedless. ... > more
• Lung Disease
  Lung Cancer
  Healthy Aging
  Attention Deficit Disorder
  Cystic Fibrosis
  Sports Medicine
   
  

  Trachea

  Trachea is a common biological term for an airway through which respiratory air transport takes place in organisms. In terrestrial vertebrates, such as birds and humans, the trachea lets air move ... > more
• Zoology
  Animals
  Wild Animals
  New Species
  Mammals
  Endangered Animals
   
  

  Bat

  Bats are mammals in the order Chiroptera. Their most distingushing feature is that their forelimbs are developed as wings, making them the only mammal capable of flight.There are estimated to be ... > more
• Geography
  Mammals
  Tundra
  Mating and Breeding
  Environmental Policy
  Wild Animals
   
  

  Muskox

  The muskox is an arctic mammal of the Bovidae family, noted for its thick coat and for the male's strong odor, hence the name. It belongs to the Caprinae subfamily, being more closely related to ... > more
• Insects (including Butterflies)
  Invasive Species
  Animals
  Exotic Species
  New Species
  Mating and Breeding
   
  

  Ant

  Ants are one of the most successful groups of insects in the animal kingdom and are of particular interest because they are a social insect and form highly organized colonies or nests, often ... > more
• Wild Animals
  Animals
  Zoology
  Life Sciences
  Marine Biology
  Nature
   
  

  Animal

  Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. In general they are multicellular, capable of locomotion and responsive to their environment, and feed by ... > more
• Insects (including Butterflies)
  Zoology
  Behavioral Science
  Animals
  Trees
  Pests and Parasites
   
  

  Insect

  Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the Phylum Arthropoda. Insects comprise the most diverse group of animals on the ... > more
• Infant's Health
  Agriculture and Food
  Organic
  Sports Medicine
  Healthy Aging
  Attention Deficit Disorder
   
  

  Pesticide

  The Environmental Protection Agency (EPA or USEPA) defines a pesticide as "any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest". A pesticide ... > more
• Heart Disease
  Immune System
  Hypertension
  Blood Clots
  Lymphoma
  Human Biology
   

  Circulatory system

  A circulatory system (sometimes cardiovascular system) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). There are ... > more
• Botany
  Endangered Plants
  Mating and Breeding
  Nature
  Pests and Parasites
  Seeds
   
  

  Plant sexuality

  Plant sexuality deals with the wide variety of sexual reproduction systems found across the plant kingdom. This article describes morphological aspects of sexual reproduction of plants. That plants ... > more

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