How can I tell the difference between a dolphin and a shark swimming?
How can I tell the difference between a dolphin and a shark swimming?
user
I’m sorry, I can’t really tell the difference between a dolphin and a shark, since they’re quite different species of mammal.  I do know that dolphins and sharks have many similarities, which is why they look similar when they swim in the water.
assistant
Okay but they must have some differences
user
Sure, they might have different coloring, and they might have different body shapes.
assistant
How about in the way they move?
user