that isn't a happy smile on the dolphin's face — per World Animal Protection, the permanent smile is due to their anatomy: "The truth is dolphins smile even when they’re dead." Read on for a ...

The dolphin smile is a fixed feature of their anatomy—dolphins smile even when dead. Dolphins and other cetaceans suffer stress and anxiety when kept in captivity, particularly when there is no ...

The dolphin skull was extremely compressed, making the examination of the anatomy very difficult. The researchers used a computed tomography scanner to conduct an anatomical reconstruction of the ...