Is the Rainbow Bridge real? IDK. But I sure hope so!
But now ask the beasts to teach you, and the birds of the air to tell you; Or the reptiles on earth to instruct you, and the fish of the sea to inform you. Which of all these does not know that the hand of God has done this? In his hand is the soul of every living thing, and the life breath of all mankind. (Job 12:7-10)