Why Are Fish Fish-Shaped?

Life comes in all different shapes and sizes, and fish are no exception. Here, young scientists create fish prints as they learn how specific characteristics allow different species to survive in their particular habitats.

Some fish contain proteins that act like antifreeze in order for them to live in the frigid waters of Antarctica! High schoolers determine how much antifreeze a fish needs to lower its body temp to -2.5 degrees. Teachers act as a...

Add a handy reference sheet about fish anatomy and functioning to your learners' biology or animal notebooks. Though this resource doesn't provide any practice, it makes a useful addition to any study of anatomy, biology, species, fish,...

Today very few animals exist with both an endoskeleton and exoskeleton. Yet, in the Devonian period, a large number of fish species lived with both. Scientists debate if they were for protection or mineral storage, because none of them...

Here's an unusual approach to ensuring the survival of a species! Introduce young biologists to the California grunion, a fish that mates on land rather than in the water. The video shows how grunion make use of time and the tide to...

If all of the viruses in the ocean were laid end-to-end, they would stretch 100 times around the diameter of the Milky Way. The video compares various species to determine which is the most successful. Should it be defined by pure...

Many species find breathing a convenient way to survive. The PBS Eons series explains how fish learned to breathe air. It details what scientists know about evolutionary history as well as many species that developed this skill...

A fish's size, fins, and shape can tell us a lot about them! Learners explore fish anatomy to see how species use camouflage, scales, shape, and coloration to survive. The lesson includes advanced vocabulary such as fusiform shape,...

Know your number! Diabetes and heart disease both increase with higher body mass index numbers. Understanding the body mass index (BMI) helps scholars take control of their own health. They view a comparison of what various BMI...

Students identify the various parts of a fish. They describe the concept of fish morphology and relate shape, form and structure of a fish's parts to function.