Possible Clues:

• Animals in a herd
• Closest living relatives of whales
• After fruit drink, book entertains those who like to wallow
• Fruit taken by river vessel diverts animals
• Ones that like to wallow in mud
• Funky river vessel tickles giants of the Zambezi, say?
• Fashionable river vessel makes diversion for semiaquatic creatures
• More than one wild animal in river by vessel delights
• Trendy river vessel diverts semiaquatic animals