I have heard that too. We will have what we need to be fulfilled. As I age, I accept the idea of Heaven as a state of mind or spirit.
**I have heard views from Animal Psychics, or those who claim to have skills of Telepathy; people who claim that they can pick up on an animals thoughts or perceive events that the animal has experienced. The animals ‘listened to’ were all domestic pets. Most of these people say the majority of animals are very accepting of their death. They may be worried about their owners getting sick, but the animals rarely see their own deaths as something scary.
I do not believe we will have pets in Heaven chiefly because I believe our desires there will be more elevated, more in tuned to worshiping the LORD, just as our relationship with our spouses in Heaven will not be as they are here on earth. I tend to believe there will be animals there, such as horses and lambs, but I’m not positive of that; I only think that because such animals are mentioned in the Book of Revelation. I actually fear for the souls of people who say that if their pet won’t be there, they don’t want to be there, either.