Are whales excludable? Are they rival in consumption? How do we classify whales in terms of the four types of goods?

Excludable

A characteristic of a good where its use can be restricted to only those who pay for it.

Rival in Consumption

A good or service is considered a rival in consumption if its use by one individual diminishes the availability or quality for others.

Whales

Large aquatic mammals known for their size, intelligence, and complex social structures, belonging to the order Cetacea.