I WONDER - What Shape Are The Kidneys?

The video explains the shape and size of kidneys, comparing them to beans and fists. It highlights that kidneys grow with the body, with one usually smaller due to the liver's position. The right kidney is smaller to accommodate the liver. Adult kidneys weigh about 160 grams, similar to a hockey puck or pool ball.

What is the reason for the difference in size between the two kidneys?

What is the approximate weight of each kidney in adults?