This question multiple choice quiz tests your knowledge of dolphins. Are you ready? Have fun!
Brazilian fishermen have special help with their work: Dolphins. Some animals of a flock participating in the hunt and have good fishing areas – and not simply altruistic. Other bottlenose dolphins of the same flock holding back striking. Particularly impressed by "Delfin number 20".
Dolphins also have a kind of "identity card". The intelligent marine mammals in the course of evolution have developed a special method by which they can identify each other.