Shark and Fish Dissections at SMLI

First, the shark:

• No swim bladder
  
• Big, oily, fatty liver, 2 lobes
  
• Cartilage, not bone
  
• Gill slits
  
• Advanced brain with grooves and large thick optic nerves
  
• Large eyes
  

Then, the fish:

• Swim bladder
  
• Bones
  
• Operculum: shield for gills