University of Florida
University of Florida: Fin Features and Measurements of Sharks
Some very specific information on the measurements and identifying characteristics of sark fins.
PBS
Nh Pbs: Nature Works: Bony Fish
This site identifies different characteristics and information related to Bony Fish. Find out some fun facts about these friendly fish when you explore this site.
CK-12 Foundation
Ck 12: Life Science: Jawless Fish
[Free Registration/Login may be required to access all resource tools.] What defines a jawless fish? You can probably guess. A jawless fish is a fish without a jaw. But there are other features that are shared by this class of organisms....
Canadian Museum of Nature
Canadian Museum of Nature: Northern Pike
This site features the Northern Pike. Read about its distribution and characteristics in this concise site.
Science Education Resource Center at Carleton College
Serc: Mn Step: Southwest Mn Fish Families
Describes a lesson where students are introduced to a live fish caught locally. After discussion of its characteristics, and having students draw and label it, they listen to a storybook about fishing, and are introduced to a set of fish...
Alabama Learning Exchange
Alex: My Book About Animals
This lesson will allow learners an opportunity to create a book about the different characteristics of mammals, birds, fish, reptiles, and insects. This lesson can be used as a wrap-up project for a unit on animals. This is a fun way for...
CK-12 Foundation
Ck 12: Life Science: 10.4 Jawless Fish
Understand the behaviors, characteristics, and classification of jawless fish.
CK-12 Foundation
Ck 12: Life Science: 10.6 Bony Fish
Explore the characteristics and behaviors of bony fish.
CK-12 Foundation
Ck 12: Life Science: Vertebrate Characteristics
[Free Registration/Login may be required to access all resource tools.] Vertebrates are animals with backbones. These include fish, amphibians, reptiles, birds, and mammals. Learn more about vertebrate characteristics in this learning...
Georgia Aquarium
Georgia Aquarium: Lake Sturgeon
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, physical and unique characteristics of the lake sturgeon.
A-Z Animals
A Z Animals: Animal Facts: Guppy (Poecilia Reticulata)
This entry identifies the defining characteristics of the Poecila Reticulata, more commonly known as the Guppy.
A-Z Animals
A Z Animals: Animal Facts: X Ray Tetra (Pristella Maxillaris)
This entry identifies the defining characteristics of the pristella maxillaris, otherwise known as the x-ray tetra.
Georgia Aquarium
Georgia Aquarium: Blackbar Soldierfish
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, physical and unique characteristics of the Blackbar Soldierfish. They can be viewed live on the webcam.
Georgia Aquarium
Georgia Aquarium: Cichlid
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, conservation status, physical and unique characteristics of the Cichlid.
Georgia Aquarium
Georgia Aquarium: Blue Runner
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, physical and unique characteristics of the blue runner. It can be viewed live on the webcam.
Georgia Aquarium
Georgia Aquarium: Discus
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, physical and unique characteristics of the discus.
University of California
Ucmp: Introduction to Chondrichthyes
Good introduction from Berkeley's department of paleontology, gives a brief history and the defining characteristics of the class of Chondrichthyes.
Other
Marine Biology: Coral Reef Fish Ecology
Provides information about larval recruitment and other aspect of fish reproduction.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Fish and Clip
Primary activity to help "students understand some of the characteristics of magnets." Would work well in conjunction with a theme on underwater creatures or fish.
Other
Alaska Fish and Game: Ringed Seal
A thorough site that delves into the physical characteristics, food habits, live history, migration and distribution, and behavior of the ringed seal.
Other
Alaska Fish and Game: Spotted Seal [Pdf]
Read about the general characteristics, reproduction, food habits, seasonal movements, behavior, population size and other aspects of the spotted seal. PDF. Requires Adobe Reader.
Other
The Animals Page
Provides an easy to understand overview of animals from protozoa and echinoderms to insects, mammals, birds, and fish.
Georgia Aquarium
Georgia Aquarium: Giant Grouper
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, conservation status, physical, and other unique characteristics of the Giant Grouper. They can be viewed live on the webcam.
Georgia Aquarium
Georgia Aquarium: Mudskipper
Use this animal guide to learn the scientific name and discover the habitat, diet, reproduction, physical and unique characteristics of the Mudskipper.