From BluWiki

Whales use their echolocation to find things in the water. It also, passively, enhances their hearing. It is a twenty-two (22) point advantage.

Build

This advantage is built using the rules for Alternative Abilities (page 61, variation on Alternative Attacks). It is composed of two advantages:

• Scanning Sense (Sonar) (page 81, 20 points)
• Cetacean Hearing (10 points)

Effects

This allows whales to use either their sonar or their enhanced hearing, but not at the same time.