Yes, they can be. Not only gray, black and white but pink as well. Pink dolphin is the common name of The Amazon river dolphin (Inia geoffrensis), that lives in Amazon, Orinoco and Araguaia rivers. It is an endangered specie due to pollution according to International Union for Conservation of Nature.
Recommended Books on How to be an Effective Communicator: 1  The Leader as Communicator: Strategies and Tactics to Build Loyalty, Focus Effort, and Spark Creativity. 2  Stand and Deliver: How to Become a Masterful Communicator and Public Speaker. 3  10 Simple Secrets of the Worldâs Greatest Business Communicators.
Leadership 11/29/2012 @ 1:50PM 405,010 views. 5 Habits of Highly Effective Communicators. Itâs no secret that good leaders are also good communicators. And the best leaders have learned that effective communication is as much about authenticity as the words they speak and write.