Science Reference

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 consuming other organisms.

Animals have several characteristics that set them apart from other living things.

Animals are eukaryotic and usually multicellular (although see Myxozoa), which separates them from bacteria and most protists.

They are heterotrophic, generally digesting food in an internal chamber, which distinguishes them from plants and algae.

They are also distinguished from plants, algae, and fungi because their cells lack cell walls.

For more information about the topic Animal, read the full article at Wikipedia.org, or see the following related articles:

Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Animal at Wikipedia.org. See the Wikipedia copyright page for more details.

Recommend this page on Facebook, Twitter,
and Google +1:

Other bookmarking and sharing tools:

|

Search ScienceDaily

Number of stories in archives: 137,305

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily's archives for related news topics,
the latest news stories, reference articles, science videos, images, and books.

Recommend ScienceDaily on Facebook, Twitter, and Google:

Other social bookmarking and sharing services:

|

  more breaking science news

Social Networks


Recommend ScienceDaily on Facebook, Twitter, and Google +1:

Other social bookmarking and sharing tools:

|

Breaking News

... from NewsDaily.com

In Other News ...

Free Subscriptions

... from ScienceDaily

Get the latest science news with our free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Feedback

... we want to hear from you!

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?

Post this page to your favorite social bookmarking site:
Include this item in your blog or web site:
Email this page's link to a friend or colleague: