Who is Grayson from the memoir, Grayson?

Grayson is the name that Cox gave to the baby whale that followed her during a portion of her morning workout after he was separated from his mother. This baby followed Cox until he was reunited with his mother. It was crucial that the baby be reunited with his mother because he depended upon his mother’s milk for nourishment. Cox was afraid the whole time she was swimming with Grayson that he would soon become weak and dehydrated. He tried to play with her and demonstrated his playful, sweet personality. At one point during their encounter, the baby whale swam close enough to Cox that she was able to touch him and put her hand underneath him, feeling as if she was holding a baby whale in her hand.