Sharks

Detect electric pulses.  Little pores on the face. 

• Lateral Line 
• Ampullae of Lorenzini
• Pit Organs
• Acne

Longest living vertebrate

• Whale Shark
• Lemon Shark
• Greenland Shark
• Frilled Shark

Sharks like to stalk their prey from 

• below
• above
• adjacent 
• within

Why is the top dark and the bottom white?

• no selective pressure for ventral pigment
• selective pressures made the bottom white

Scale Material

• Dermal Dentin
• Colligen
• Karatin
• Enamel 

Eggs hatch inside body where placenta feeds babies. 

• Viviparity
• Oviparity
• Ovoviviparity

Developing young eat eachother in the womb

• Viviparity
• Oviparity
• Ovoviviparity

Egg laying sharks are 

• viviparous 
• oviparous
• ovoviparous

Shark fishing kills 

• 1 million sharks a year
• 500,000 sharks a year
• 10,000 sharks a year
• 100 million sharks a year

Lateral lines enhance 

• Touch
• Taste
• Hearing
• Smell