Reference Terms
from Wikipedia, the free encyclopedia


An exoskeleton, in contrast to an endoskeleton, is an external anatomical feature that supports and protects an animal's body.

All arthropods (such as insects, spiders and crustaceans) and many other invertebrate animals (such as shelled mollusks) have exoskeletons.

Lobsters, for example, have tough outer shell systems which provide rigidity and shape to their bodies.

Note:   The above text is excerpted from the Wikipedia article "Exoskeleton", which has been released under the GNU Free Documentation License.
Related Stories

Plants & Animals News
May 22, 2017

Latest Headlines
updated 12:56 pm ET