Crocodile's Tears

In "Crocodile's Tears" by Alex Beard, a black rhinoceros and his friend Tikbird are too afraid to ask the crocodile directly why he is crying, so they travel through Africa asking a series of endangered animals if they know the reason. The story features the black rhinoceros, Tikbird, the crocodile, and other endangered African animals as characters. The book is set in Africa and includes full-color illustrations.