Learn about and witness the blowfish's puffing defensive behaviour
A puffer (family Tetraodontidae) swimming in its inflated and normal states.
Encyclopædia Britannica, Inc.
-
Encyclopædia Britannica, Inc.What is food for a mushroom? That depends.
-
Contunico © ZDF Studios GmbH, MainzLearn about lightning and thunder.
-
Encyclopædia Britannica, Inc.Learn about phytoplankton, plantlike types of microscopic algae that live suspended in bodies of water such as oceans. The term phytoplankton comes from the Greek words phyton (“plant”) and planktos (“wandering”). Examples of planktonic algae include diatoms and dinoflagellates.
-
Contunico © ZDF Studios GmbH, Mainz; Thumbnail © Vlad1949/Dreamstime.comExplore a coral reef in the South Pacific and learn about its diverse fish population, which includes humphead wrasses (sometimes called Napoleon fishes) and triggerfishes.
-
Encyclopædia Britannica, Inc.For animals, life is a daily struggle for survival in a dangerous and often unpredictable environment. This film shows some of the means of protection that nature provides its animal species.
-
Encyclopædia Britannica, Inc.Learn about the tactic a queen triggerfish (Balistes vetula) uses to prey upon a sea urchin.
-
Encyclopædia Britannica, Inc.Ray-finned fishes are found in freshwater and saltwater habitats around the world and have evolved a wide variety of body plans.
Transcript
NARRATOR: To defend itself against predators, the puffer, or blowfish, inflates its body with air or water, assuming a globular shape.
When danger has passed, the puffer gradually returns to its original, more streamlined form.
When danger has passed, the puffer gradually returns to its original, more streamlined form.