Peru's coastal ecosystem is only one of the country's amazing features. But travelers don't need passports, expensive plane tickets, or heavy suitcases to examine the biodiversity of coastal Peru. Armed with a field trip log and graphic...

Some species of fish are more closely related to humans than they are to other species of fish! How did so many species, that aren't closely related, develop the same body shape? A short video explains the evolution of fish. 

One of the most abundant fossils on earth confused paleontologists for more than one hundred years. Viewers learn about the mystery and discoveries related to conodonts in a video from PBS as part of its Eons series.

Shocking! Share the story of electric fish with young biologists for a fascinating lesson in specialized cells. The narrator of the video describes how some species of fish generate electric current, differentiates between weakly and...

Shark teeth in Idaho, China, and Russia confused scientists for hundreds of years. A spiral of sharp teeth presented the first clue, but where would they even go on a shark? Learn more about the strange case in a video that is part of a...

The pressure at the bottom of the ocean is 10,000 times that at sea level. Scholars go under the sea as they learn about organisms found in the deep ocean waters. From angler fish to deep sea jellies that bioluminescence, viewers see...

About 70 percent of the genes of the stickleback fish are the same as humans. In the video, scholars further explore the stickleback fish and its history, from being removed from Loberg Lake to their change and comeback. Over time, these...

Young scholars observe swimming and resting patterns of aquarium fish to determine how different parts of the habitat are used. Different pairs of students should compare their results after several days to look for daily patterns.

Playing with balloons, water, oil, and bottles help put this lesson over the top! Participants use air-filled balloons in water tanks to experience gas compression. They also use oil-filled bottles to experiment with buoyancy. Included...

Information is provided on Gray's Reef, Florida Keys, and Flower Garden Banks marine sanctuaries. Young marine biologists then visit the FishBase and REEF databases to collect fish species information for each location. They then...

Learning to read data tables is an important skill. Use this resource for your third, fourth, or fifth graders. Learners will will study tables of fish collection data to draw conclusions. The data is based on fish environments in the...

Classifying animals has never been this much fun! Pupils discuss the animal groups, fish, reptiles, amphibians, mammals, birds, and also identify their characteristics. Then, they take pictures of animals and classify them in a group...

Focusing on the fish in the Hudson River Estuary, this activity could be used to practice reading, graphing ,and critical-thinking skills. Answering the 6 questions should be interesting for students due to the interesting subject matter.

Ever wonder how scientists track fish underwater? Your class can learn how with this informative worksheet. First, they will read a paragraph about androgynous fish, tagging, and data analysis. Then, your scientists must answer five...

New ReviewSo much science in one tiny fish! Introduce young biologists to the zebrafish, a common aquarium inhabitant. The small, unassuming organism presents an opportunity for learners to study habituation using an easy-to-care-for species. Lab...

New ReviewHere's a lab that may make you rethink that morning cup of coffee. Biology scholars test the effects of caffeine, alcohol, and nicotine on the behavior of zebrafish through an intriguing experiment. Learners observe fish behavior before...

Scholars discover the crazy camouflage technique of the flounder fish. After reading three informative paragraphs, participants follow steps to make a model of the sea creature.

Swim with the fishes. Class members observe, research, and record physical characteristics of Betta fish. They change the environment of the aquarium by adding rocks and plants and observe any reactions the fish have to the new environment.

Follow the path to the sea floor. Pupils play an online interactive board game to reach the bottom of the sea. Participants must match descriptions of creatures to a property of water dealing with oxygen, food, light, or density to move...

A fish is not just a fish. So many fish in remote places have unique characteristics. Take a trip with an ichthyologist to the Congo River to discover the species of one of the most diverse fish populations in the world. The online...

A short video shows how a scuba divers' equipment relates to major parts of a fish. Learners draw two fish and identify what aspects are the same and which are different. The scholars then draw a scuba diver, making sure they provide all...