What is the first we think when we hear something about dolphins? It could be words like friendly, funny, gentle, playful, intelligent etc. However, when it comes the breeding season in the wild, dolphins also are very skillful to defend themselves and to be very competitive against each other, reaching stages of aggression, persecution and even biting between them! This type of behavior does not make them dangerous animals to man, it’s just a small stage in their natural life cycle for all the members in the Delphinidae family.