How many hearts does a salmon fish have?

Where do oceanic whitetip sharks live? Do all anchovies have fins and scales? Do sharks eat jellyfish? Where did the Sirens live? It is healthy to eat the skin of the salmon? What cold water fish can be kept together? A fish may have hundreds of offspring a time and only a small number will survive.what characteristics of fish might allow them to survive? Can a hermit crab live over 100 years? What are examples of Aerobic bacteria for farm ponds? Can a great white shark turn into a vegetarian? What shark does the National Shark Society consider most dangerous? What is carpe moneta? Are there more deaths by pigs or sharks in North America? Why does your fish's fins turn black? When does trout season open in GA for 2011? Why do black goldfish sit at the bottom of the tank? How long does it take to digest salmon? Paano mo maipakita ang iyong pangangalaga sa kapaligiran na siyang pinagkukunan ng pansagot sa pangunahing pangangailangan? Why does a shark have a nose when it breathes through gills? What is urea and how do sharks use it?