The pod is the basic social structure of dolphins which rely on this organization to survive. The bonds between the members of a pod are strong.
The conservation status of up to 25% of the dolphin species is vulnerable or worst. Pollution, fishing, and hunting are factors that affect the development and survival of these cetaceans.
There are 15 species of herring but the most common is the Atlantic Herring.
Dolphins eat fish and squid know about the feeding habits for each of the major dolphin species.