Understanding the needs of creatures such as the humpback whale brings into focus the interrelationships between humankind and the rest of life on Earth. By saving them we save ourselves. Her human and animal based thinking is an ethic that I think most people can agree with. It focuses on humans as a part of the ecosystem, not just the top of the food chain. Earle's view is not a speciest one.
Singer says that most people are speciest.
I think that Singer is wrong on this account. It can be seen that most of the above scholars and experts are against speceism. Realizing that Singer wrote that over 20 years ago is also important. In the past two decades or so, the movement for animal rights has evolved and public awareness has grown substantially. Full liberation of animals has not yet been achieved.