The coelacanth is known as a "living fossil" because its anatomy has changed little in the last 65 million years. Despite being one of the most studied fish in history, it continues to reveal new ...

Discover how spookfish mirrors in eyes revolutionize deep-sea fish anatomy and light detection for survival in the dark ocean depths. The odd-looking spookfish is the only vertebrate known to have ...

When an Australian scientist uncovered an ancient-looking placoderm skull in the 1960s, he thought he'd cracked the code on an evolutionary mystery. This so-called 'platypus fish,' scientists had ...

CC0 Usage Conditions ApplyClick for more information. Kids learn about the basic anatomical characteristics shared by most types of fish. This video is part of the ...