O'Gorman noted this pattern of size ranges they discovered was different between herbivorous and carnivorous dinosaurs.

MSN: Dinosaurs were just born to be giants, research shows

The sizes of herbivorous dinosaur species were biased toward giants, while carnivorous dinosaurs had nearly as many smaller species as large ones.

MSN: Dinosaurs were just born to be giants, research shows

Of greater risk to humans is the exposure to thousands of pesticides made naturally by plants (to kill herbivorous insects) and found in all fruits and vegetables.

ECONOMIST: The status of Lisbon

That is likely because the herbivorous lifestyle allows a larger size limit, so that the larger they get, the more energy they can get from digested food.

MSN: Dinosaurs were just born to be giants, research shows

"I would be very interested to explore the fish data more thoroughly, subdividing by herbivorous and carnivorous groups as we have done for the dinosaurs, " O'Gorman told LiveScience.

MSN: Dinosaurs were just born to be giants, research shows

Their role in Mesozoic ecosystems, including as predators of dinosaurs, has been reassessed over the past few years and their diversity of forms (even including herbivorous species) is becoming increasingly apparent.

ECONOMIST: Or, rather, the dinosaur and the crocodile

There had been concern that the re-establishment of a predator called the Nassau grouper would lead to a dramatic reduction in the population of parrotfish a group of herbivorous species that feast on seaweed that would otherwise overwhelm the coral.

ECONOMIST: Fishing (I)