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.
Written by Peter Adebi, organization development expert, leadership coach, and human resource consultant, this seminar, Achieving Optimal Workplace Success through Effective Communication, is designed to help you acquire the skills you need to be an effective communicator.