LOL

Stick figure points to a diagram on a whiteboard that shows a shark fin above the surface and the rest of the shark below.

Text in image: Today's marine biology lecture is on sharks. We all know them as the scary triangles of the sea, but recent research has revealed that the triangle is only a small portion of the shark-over 90% of it is hidden beneath the surface.

Hidden Title text: Concealed mostly beneath the surface, sharks are the icebergs of the sea.