Advertisement.

EnchantedLearning.com is a user-supported site.
As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.
Click here to learn more.

ad
(Already a member? Click here.)


Table of Contents
Enchanted Learning
All About Sharks!

Geologic Time Chart
Introduction to Sharks Introduction to Rays Anatomy Shark and Ray Species Extreme Sharks Extinct Sharks Classification Shark Glossary Shark Index Printables, Worksheets, and Activities

SHARK ANATOMY
Tiger shark

A SHARK'S BRAIN


Sharks and rays have very large and complex brains. Little is known about these brains. Sharks's brains to body mass ratio is higher than most other fish and is comparable to many other vertebrates, including some mammals.

Brain size and complexity vary from shark species to species. The sharks with the largest brain:body weight ratio are active sharks like the dusky shark and the scalloped hammerheads. The sluggish bottom-dwellers (like angelsharks) have relatively smaller, less complex brains.

A partial list of functions: the cerebellum is in charge of body movement; the hindbrain processes most sensory information and moves the head; the tectum integrates sensory information; the olfactory lobes are for the sense of smell; the diencephalon regulates hormones and some behaviors; the forebrain coordinates sensory information.





Enchanted Learning®
Over 35,000 Web Pages
Sample Pages for Prospective Subscribers, or click below

Overview of Site
What's New
Enchanted Learning Home
Monthly Activity Calendar
Books to Print
Site Index

K-3
Crafts
K-3 Themes
Little Explorers
Picture dictionary
PreK/K Activities
Rebus Rhymes
Stories
Writing
Cloze Activities
Essay Topics
Newspaper
Writing Activities
Parts of Speech

Fiction
The Test of Time

Biology
Animal Printouts
Biology Label Printouts
Biomes
Birds
Butterflies
Dinosaurs
Food Chain
Human Anatomy
Mammals
Plants
Rainforests
Sharks
Whales
Physical Sciences: K-12
Astronomy
The Earth
Geology
Hurricanes
Landforms
Oceans
Tsunami
Volcano
Languages
Dutch
French
German
Italian
Japanese (Romaji)
Portuguese
Spanish
Swedish
Geography/History
Explorers
Flags
Geography
Inventors
US History

Other Topics
Art and Artists
Calendars
College Finder
Crafts
Graphic Organizers
Label Me! Printouts
Math
Music
Word Wheels

Click to read our Privacy Policy

E-mail Busy Little Brains
CD-ROM


Enchanted Learning Search

Search the Enchanted Learning website for:



Advertisement.

Advertisement.





Copyright ©1996-2018 EnchantedLearning.com ------ How to cite a web page