Some dinosaurs were fussy eaters.
Certain herbivorous dinosaurs preferred specific parts of plants, challenging long-standing assumptions about their diets, a study of fossilized dino teeth shows. The analysis of calcium isotopes in 150-million-year-old tooth enamel reveals that diet may have depended less on the size of dinosaurs and more about the nutritional value and texture of their food, researchers report in the Oct. 1 Palaeogeography, Palaeoclimatology, Palaeoecology.
“My big takeaway is that the herbivores had different diets, and it is likely that the parts of a plant that these animals eat [are] a more significant driver than height,” says Liam Norris, a paleontologist at the Texas Science & Natural