|
|
Article: Inside a squid. (the organs within the squid, includes a look at three other invertebrate, sponge, octopus, crab)(Brief Article)(Illustration)(Cover Story)
- Article from:
- Science World
- Article date:
- November 3, 1997
CopyrightCOPYRIGHT 1997 Scholastic, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Squid are invertebrates: animals without backbones. Most animals in the world--about 99 percent of all species--are invertebrates. What else makes a squid different from vertebrates like you? Check out the diagram below, then read about three other ocean invertebrates at far right.
ESOPHAGUS
This tube connects the mouth to the stomach. Since the esophagus passes directly through the brain, a bite of food that's too big can kill a squid instantly!
GLADIUS
This feather-shaped blade runs beneath the mantle. Made of a material like that of human fingernails, the gladius is the squid's only body support.
SUCKERS
Squid suckers have the ...