PBS
When Fish Wore Armor
420 million years ago, some fish were more medieval. They wore armor, sometimes made of big plates, and sometimes made of interlocking scales. But that armor may actually have served a totally different purpose, one that many animals...
SciShow
Why Don't Sharks Have Bones?
Eat facts, Shark Week! Hank takes you on a tour of the shark's amazing anatomy, including the many adaptations that made it a great predator -- despite not having any bones.
SciShow
5 Animals That Aren't Dinosaurs
If you get most of your information about ancient animals from vintage cartoons or action figures, then a lot of things that you think of as "dinosaurs" actually weren't. Learn about the definition of true dinosaurs and the evolutionary...
SciShow
The 10 Oldest Fossils, and What They Say About Evolution
Wouldn’t it be cool to be able to point at a fossil and know that it’s the first, say, plant? Well... yeah! But it's not that easy! Scientists are always making new discoveries that throw all our old assumptions into question, but we've...
Crash Course
Chordates - CrashCourse Biology
Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...
Curated Video
Exploring the World of Fish: Anatomy, Behavior, and Classification
This video provides an overview of different sea creatures, explaining which ones are fish and which ones are mammals. It also delves into the anatomy and characteristics of fish, including their fins, circulatory system, feeding habits,...
Curated Video
How Did Fish Evolve?
Journey through the evolution of fish, from the first vertebrate to the fish species that would eventually evolve to crawl onto land. Biology - Animal Kingdom - Learning Points. The first fish was called Haikouichthys, and it evolved in...
Visual Learning Systems
Features of Fish: Bony Fishes
This colorful, lively series of videos explores the fascinating features of fishes. The major characteristics of this widely diverse group of vertebrates are described through the use of live-action video. Special attention is paid to...
Curated Video
Sharks: Diversity, Behavior, and Reproduction
This video provides an informative overview of sharks, highlighting their diversity, unique characteristics, and behaviors. It explores their evolution, feeding habits, senses, reproductive strategies, and lifespans. Fish part 3/3
Visual Learning Systems
What Is a Fish?: Different Types of Fishes
This lively video investigates the wide, colorful assortment of fish found on the planet. Concepts and terminology: saltwater, freshwater, cold-blooded, fins, backbone, eggs, scales, and gills.
Getty Images
A montage shows the color yellow in nature, business, human society, travel, and the architecture.
A montage shows the color yellow in nature, business, human society, travel, and the architecture.
Getty Images
A lion fish spreads its fins as it hovers over a coral reef.
A lion fish spreads its fins as it hovers over a coral reef.